Session Index

Nanophotonic Materials and Devices

Poster Session I
Thursday, Dec. 7, 2017  12:30-14:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-THU-P0101-P001
Sheng-Rui Wu Radiative cooling metasurface based on phase change metamaterial
Sheng-Rui Wu;Kuan-Lin Lai;Chih-Ming Wang

In this paper a frequency-tunable metamaterial in the mid-infrared range is theoretically demonstrated by using insulator-metal phase transition material, vanadium dioxide(VO2). Through adjusting geometric parameters of proposed structure can get high-intensity net radiation power, and has great potential for adjustable optical switch or passive radiative cooling.

Paper No.  2017-THU-P0101-P002
Chen-Yu Huang Award Candidate Plasmonic Hot-electron Excitation from Planer Metal-Semiconductor-Metal Structures
Chen-Yu Huang;Kuo-Ping Chen

We propose a planer metal-semiconductor-metal (MSM) device for hot-electron excitation. Surface plasmon enhahance the photoemmission of hot electron and inject to the wide band gap materials (Zinc Oxide). Hot electrons are collected by the bottom metal to provide the photocurrent enhancement

Paper No.  2017-THU-P0101-P003
Liang-Jhih Wang Award Candidate Highly Sensitive 1D Photonic Crystal Strain Sensors with Nanoclamps
Liang-Jhih Wang;Tsan-Wen Lu;Po-Tsung Lee

We propose a novel nanoclamp structure that can produce non-uniform structural deformation distribution under an applied stain. Combined with this nanoclamp, the wavelength response and minimum detectable strain from 1D photonic crystal nanocavity embedded in a deformable material are significantly improved to be 10.9 nm/% and 0.2 ‰ in experiments.

Paper No.  2017-THU-P0101-P004
Zih-Ying Yang Award Candidate High Q-factor Selective Thermal Emissions by Tamm Plasmon Structures
Zih-Ying Yang;Mao-Guo Sun;Kuo-Ping Chen

Infrared wavelength selective thermal emission based on Tamm plasmon is experimentally demonstrated with ultra-sharp resonance. The excitation of Tamm plasmon polaritons (TPPs) occurs between a distributed Bragg reflector and a metal film. The proposed structure could achieve twice higher Q-factor for the measured emissivity comparing to typical plasmonic thermal emitters.

Paper No.  2017-THU-P0101-P005
Shiau-Yuan Huang Award Candidate Deep-Ultraviolet Aluminum-Gallium Oxides Photodetectors Grown by Pulsed Laser Deposition
Shiau-Yuan Huang;Shuo-Huang Yuan;Chien-Ming Chen;Chao-Chun Wang;Dong-Sing Wuu

Deep-ultraviolet photodetectors were fabricated from epitaxial aluminum gallium oxide ((AlGa)2O3) films by pulsed laser deposition. The photodetector shows an excellent device performance where the photocurrent, dark current, and responsivity (@5 V and 240 nm) are measured to be 6.4 × 10−8 A, 8.2 × 10−13 A, and 0.5 A/W, respectively.

Paper No.  2017-THU-P0101-P006
Wei-Ren Lin Award Candidate Characterization of Current Collapse Phenomenon in Enhancement mode GaN-Based HEMTs Using an AlGaN/GaN/AlGaN Double Heterostructure
Wei-Ren Lin;Jian-Jang Huang;Shin-Yi Ho

In this paper, the Current collapse phenomena were studied on devices of E-mode MIS, Schottky gate and field-plate HEMTs using enhancement mode (E-mode) AlGaN/GaN/ AlGaN double heterostructure. The results indicate the suppression of current collapse for devices with double heterostructure.

Paper No.  2017-THU-P0101-P007
Bo Han Chen Award Candidate Pixel-level full-color routing metalens at visible light
Bo Han Chen;Pin Chieh Wu;Vin-Cent Su;Yi-Chieh Lai;Cheng Hung Chu;I Chen Lee;Jia-Wern Chen;Yu Han Chen;Yung-Chiang Lan;Chieh-Hsiung Kuan;Din Ping Tsai

We demonstrate a single multiplex color router with dielectric metalens, which is capable of guiding individual primary colors into different spatial positions, is experimentally verified based on the design of out-of-plane focusing metalens.

Paper No.  2017-THU-P0101-P008
Yu-De Lin Award Candidate Field-Enhanced Direction-Controllable Surface Plasmon Vortices in a Metasurface under Linearly-Polarized Excitation
Yu-De Lin;Chen-Bin Huang

Dynamic control to the direction of surface plasmon vortices is numerically achieved by changing the orientations of the linearly-polarized optical excitations. With a half-etched circular cavity centered at the origin, we show that the vortex intensity can be enhanced by a factor of 3.7.

Paper No.  2017-THU-P0101-P009
Si-Yuan Chan Award Candidate Enhanced performance of near-UV electroluminescence from Al-decorated n-ZnO/p-GaN heterojunction light-emitting diodes
Si-Yuan Chan;Ching-Yen Wang;Hsu-Cheng Hsu

We report the enhanced electroluminescence (EL) from heterojunction LEDs of p-GaN film/n-ZnO nanoparticles structure decorated with aluminum (Al) nanoparticles. By changing the structure of devices, the performance of near-UV EL was optimized. Among them, ZnO/Al/ZnO sandwich-structured LED shows the superior performance.

Paper No.  2017-THU-P0101-P010
Yan-Ting Liu Award Candidate In-situ Observation of Moisture-induced Phase Transition in CH3NH3PbI3 Perovskite Thin Films
Yan-Ting Liu;Bo-Lun Jian;Li-Te Tseng;Zi-Wei Huang;Hsu-Cheng Hsu

We report the phase evolution of CH3NH3PbI3 perovskite thin films under a humid environment by using in-situ photoluminescence measurement. Under high humidity condition of 99%, photoluminescence intensities of the tetragonal phase show gradually an increase tendency, whereas a decrease of photoluminescence intensities from the traps states is observed.

Paper No.  2017-THU-P0101-P011
Chien-Ying Huang Award Candidate An Ultrasensitive Nanoplasmonic Sensor Utilizing Plasmon Coupling in Sevenfold Nanorod Array
Hung-chun Chang;Chien-Ying Huang

A novel design for ultrasensitive nanoplasmonic sensor by utilizing the coupling interaction between sevenfold nanorods is demonstrated. The figure of merit achieved is up to 26.55, which is a great improvement for localized surface plasmon resonance (LSPR) based nanosensors.

Paper No.  2017-THU-P0101-P012
YUEH-HENG CHUNG Award Candidate Physical bounds of scattering distribution on passive systems
YUEH-HENG CHUNG;Jeng Yi Lee;Ray-Kuang Lee

By taking power conservation , we proposea phase diagram for scattering coefficients through its modulus and phase. All the supported scattering results can be depicted in a single map. By means of this phase diagram, we reveal the physical limits of scattering distribution for a passive scatter.

Paper No.  2017-THU-P0101-P013
Chun-Ron Chang Novel Perovskite:PVK Light-Emitting Devices Based on Zinc Oxide Nanorod Arrays
Szu-Ping Wang;Chun-Ron Chang;Sheng-Hsiung Yang;Che-Yu Chang;Yu-Chiang Chao

We demonstrate inverted perovskite light-emitting devices based on ZnO nanorod arrays as the electron transport layer and methylammonium lead bromide nanoplatelets (MAPbBr3 NPLs) as the emissive material. Different weight ratios of poly(N-vinylcarbazole) were blended with MAPbBr3 NPLs to make evenly dispersed nanocomposite films, thereby enhancing the performance of devices.

Paper No.  2017-THU-P0101-P014
Ming Sheng Lai Award Candidate Manipulating Circular Polarization Light by the Building Block of Plasmonic Gold Nanorods
Ming Sheng Lai;Hsiang Ting Lin;Min Hsiung Shih

The asymmetry modal profile of dimer nanorods (DNRs) was achieved by controlling the shift dimer nanorods (SDNRs). The D+ and D- SDNRs structure exhibit the selection of right and left circular polarization light, respectively. In experimental results, the circular dichroism value of SDNRs can obtained from 15% to -15%.

Paper No.  2017-THU-P0101-P015
Hsuan-Wei Chang Award Candidate Surface enhanced Raman scattering by photoreduced silver nanostructures produced using electrostatic-field-tunable ferroelectric template
Hsuan-Wei Chang;Hsi-Yang Hsu;Ta-Hung Cheng;Hai-Pang Chiang;Yi-Ru Li;Pei-Kuen Wei;Tzyy-Jiann Wang

We present a novel ferroelectric template to produce photoreduced silver nanostructures on LiNbO3 for Raman scattering enhancement. The proposed ferroelectric template possesses the electrostatic field tunability, which facilitates the production of optimal silver nanostructure. The Raman signal intensity has a 2.51 times enhancement in comparison with the conventional ferroelectric template.

Paper No.  2017-THU-P0101-P016
Yu Han Chen Award Candidate High efficient metallic metalens
Yu Han Chen;Pin Chieh Wu;Jia Wern Chen;Cheng Hung Chu;Bo Han Chen;Ren Jie Chen;Yi Chieh Lai;Din Ping Tsai

Metalens recently has been attracted a lot of attention because its ability on converging light with ultra-thin dimensions. In our work, a metallic metalens composed of C-shaped aperture integrated with two orthogonal gratings are proposed to improve the working efficiency in near infrared region.

Paper No.  2017-THU-P0101-P017
Chi-Tsung Tsai Award Candidate High-Quality 280 nm AlGaN Multiple Quantum Wells on Low-Defect AlN-on-Sapphire Templates
Chi-Tsung Tsai;Tzu-Yu Wang;Chia-Feng Lin;Dong-Sing Wuu

High internal-quantum-efficiency (IQE) AlGaN multiple quantum wells (MQWs) were successfully demonstrated on low-defect-density AlN templates with nano-patterned sapphire substrates. The AlN crystallinity was systematically improved, an ultra-low etching pit density of 1×105 cm-2. The relative IQE of 280 nm AlGaN MQWs exhibited a dramatically increase from 22.8% to 85%.

Paper No.  2017-THU-P0101-P018
Yu-Sheng Chen Award Candidate Tamm Plasmon Polaritons Hydrogen Sensors
Yu-Sheng Chen;Zih-Ying Yang;Chen-Yu Huang;Kuo-Ping Chen

Tamm plasmon polariton resonance is observed in the band gap of 1D photonic crystal coating with a thin metal film. Utilizing the palladium in TPP devices, Pd could change its optical and structural properties, when exposure hydrogen gas. Therefore, TPP shows a high sensitivity for hydrogen sensing in visible wavelengths.


Nanophotonic Materials and Devices

Plasmonic I
Thursday, Dec. 7, 2017  13:00-14:45
Presider: Chen-Bin (Robin) Huang;Shu-Wei Chang
Room: International Research Building IR1003 (1F)
13:00 - 13:15 Paper No.  2017-THU-S0101-O001
Chen-An Lin Award Candidate Micrometer-sized Chiral Lasers with Metal/GaN Double-Spiral Nanowire Cavity
Chen-An Lin;Min-Hsiung Shih

The compact size, room temperature operated circular polarization laser was demonstrated with the metal/GaN double-spiral cavity. The lasing action was observed at 363 nm ultraviolet wavelength, with the smallest footprint and highest circular polarization found to be 2 μm and +1.6 of the dissymmetry factor respectively.

13:15 - 13:30 Paper No.  2017-THU-S0101-O002
Wei Tan Award Candidate Study on bowtie plasmonic notch for nanoparticle trapping and sensing
Wei Tan;Yi-Chang Lin;Po-Tsung Lee

We propose a nanotweezers design named plasmonic bowtie notch for nanoparticle trapping and sensing. Simulation shows that an 100 nm polystyrene sphere can be trapped with threshold power density of 1.1 mW/square micrometer and a sensitivity of 0.1 nm reflection dip shift per 1 nm change of trapped particle size.

13:30 - 14:00 Paper No.  2017-THU-S0101-I001
Invited Speaker:
Igor Smolyaninov
Hyperbolic Metamaterials
Igor Smolyaninov

Hyperbolic metamaterials were originally introduced to overcome the diffraction limit of optical imaging. Soon thereafter it was realized that hyperbolic metamaterials demonstrate a number of novel phenomena resulting from the broadband singular behavior of their density of photonic states. These novel phenomena and applications include super resolution imaging, new stealth technologies, enhanced quantum-electrodynamic effects, thermal hyperconductivity, superconductivity, and interesting gravitation theory analogues. I will review typical material systems, which exhibit hyperbolic behavior and outline important applications of hyperbolic metamaterials.

14:00 - 14:15 Paper No.  2017-THU-S0101-O003
Enoch Rufus Young Award Candidate Hybrid Plasmonic Waveguide-based Multimode Interference for XOR Logical Gate
Enoch Rufus Young

We propose an XOR logical gate based on hybrid plasmonic waveguide using multimode interference. The destructive multimode interference is generated in a single plate by utilizing an adjacent phase modulator. The highest contrast ratio can reach 11.5dB in simulation and distinctive brightness at output port is observed in experiment.

14:15 - 14:30 Paper No.  2017-THU-S0101-O004
Jhu-Hong Li Award Candidate Quasi-0D Plasmonic Nanodot Lasers with Extremely Small Mode Volume
Jhu-Hong Li;Tien-chang Lu

We demonstrate a quasi-zero dimensional (quasi-0D) plasmonic nanodot laser by ZnO nanowire intersecting with Ag grating. The effective mode volume is 100 times smaller than that of two-dimensional SPP nanolaser. The strong dispersion relation cause group velocity 1/165 times of the light speed and the spontaneous emission factor is 0.8.

14:30 - 14:45 Paper No.  2017-THU-S0101-O005
Chang Hung-Ming Award Candidate Generation of convergent beams by Surface Magnetoplasmon Emission
Chang Hung-Ming;Lan Yung-Chiang

In this study, we design a magnetic lens for surface magnetoplasmons to generate a convergent beam in terahertz region. The proposed structure is a semiconductor-insulator-semiconductor substrate with chirped gratings on the substrate based on the phase matching condition and can be well manipulated by the external magnetic field.


Nanophotonic Materials and Devices

Plasmonic II
Thursday, Dec. 7, 2017  15:15-17:00
Presider: Yung-Chiang Lan;Tsung Sheng Kao
Room: International Research Building IR1003 (1F)
15:15 - 15:45 Paper No.  2017-THU-S0102-I001
Invited Speaker:
Hiroaki Misawa
Spectral and Temporal Evolution of Near Field on Coupled Plasmonic Nanostructures by Photoemission Electron Microscopy
Hiroaki Misawa

Exploring the near-field properties of coupled plasmonic nanostructures is crucial to understand plasmon coupling in them. Here, we probed the near field of several coupled plasmonic nanostructures using PEEM. We demonstrated Fano resonance in gold heptamer structures and revealed plasmon hybridization in gold dolmen structures both spectrally and spatially.

15:45 - 16:00 Paper No.  2017-THU-S0102-O001
JUI-TSE TANG Award Candidate The Band Alignment of Different 2D Materials: Vertical and Planar MoS2/WS2 Hetero-structures
JUI-TSE TANG;Kuan-Chao Chen;Chao-Hsin Wu;Shih-Yen Lin

Significant photoluminescence intensity quenching is observed after transferring a mono-layer MoS2 to multi-layer WS2 films, which indicates that a type-II band alignment is obtained for the MoS2/WS2 vertical hetero-structure. By pre-patterning the WS2 film before the transferring procedure, a planar hetero-structures with adjacent type-I MoS2 and type-II MoS2/WS2 is obtained.

16:00 - 16:15 Paper No.  2017-THU-S0102-O002
Tsung Lin Chung Award Candidate Planar anapole metamaterial
Tsung Lin Chung;Pei Ru Wu;Chun Yen Liao;Pin Chieh Wu;Yao-Wei Huang;Jia-Wern Chen;Din Ping Tsai

A plasmonic metamaterial with non-radiating anapole mode is presented. For the proof of concept, we demonstrate a transverse toroidal dipole and its destructive interference with electric dipole at optical frequencies

16:15 - 16:30 Paper No.  2017-THU-S0102-O003
Chang-Ruei Li Award Candidate Chiral selective plasmonic metamirrors
Chang-Ruei Li;Jhen-Hong Yang;Kuo-Ping Chen

A chiral plasmonic metasurface as the circular dichroism metamirror was demonstrated to achieve spectrally selective chirality in the visible wavelengths. The absorption and circular dichroism can respectively achieve 85 % and 64 % at 705 nm.

16:30 - 16:45 Paper No.  2017-THU-S0102-O004
Zhong Xing Zhou Award Candidate Silicon metasurfaces as narrow-band absorbers
Chi Yin Yang;Jhen Hong Yang;Zih Ying Yang;Zhong Xing Zhou;Kuo Ping Chen

Silicon nanostructures can optically induced electric dipole (ED) and magnetic dipole (MD), and offer opportunities for narrowband applications. Here we propose high absorptance device by using amorphous silicon nanoantenna arrays with suppress backward and forward scattering. Because the cancellation of scattering in far-field, the high absorptance device can be achieved.

16:45 - 17:00 Paper No.  2017-THU-S0102-O005
Han-Rong Ou Award Candidate Optical activity for Asymmetric U-shaped metasurface with circular coefficient analysis
Han-Rong Ou;Po-Yang Wu;Chun-Hung Lin

In this study, we use rigorous coupled-wave analysis to simulate the optical characteristic of asymmetric U-shaped metasurfaces, measure the transmission spectrum and analysis the Stoke's parameter. There is a giant optical response in near infrared region. With nanoimprint transfer fabrication, the asymmetric U-shaped gold metasurfaces can be fabricated simply, successfully.


Nanophotonic Materials and Devices

Poster Session II
Thursday, Dec. 7, 2017  15:30-17:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-THU-P0102-P001
ChengYen Chien Award Candidate Effects of dislocation reduction on AlGaN/GaN using ELOG technology
ChengYen Chien;JunHuei Lin;ChienTsun Chan;WeiYang Wang;YaoHong You;RayMing Lin Lin;ChiehHsiung Kuan

We primarily use ELOG technology to epitaxy high-quality GaN by MOCVD. We confirm that ELOG technology really enhance the epitaxy quality by EPD wet etching method, and achieve different dislocation density on GaN by way of designing mask patterns. HEMTs was improved performance by the high-quality GaN.

Paper No.  2017-THU-P0102-P002
Sheng-Jia Yu Award Candidate Fabrication of high aspect ratio silicon nanopillar arrays by metal assisted chemical etching
Sheng-Jia Yu;Chun-Hung Lin

In this study, we report on a cost-effective, simple and anisotropic etching approach to fabricate high aspect ratio silicon nanopillar arrays using UV nanoimprint lithography and metal assisted chemical etching. The influences of etching time and diameter are distinctly exhibited in this experiment.

Paper No.  2017-THU-P0102-P003
Jhen-Hong Yang Award Candidate Fano-like resonance in hybridization of high-refractive-index dielectric nanoparticles and gold nanoantennas
Jhen-Hong Yang;Kuo-Ping Chen

The absorption was enhanced by nearly a factor of four when the whispering gallery mode coupled to localized surface plasmon resonance. The absorption was suppressed when the magnetic dipole resonance was coupled to the localized surface plasmon resonance. The absorption could be enhanced or suppressed depending on the illumination direction.

Paper No.  2017-THU-P0102-P004
Ta-Hsin Tseng Award Candidate Stacking of on-chip photovoltaic cells in standard foundry Bi-CMOS process
Ta-Hsin Tseng;Hsiu-Wei Su;Chen-Han Lu;Yu-Ching Cheng;Yung-Jr Hung

Deep dielectric trenches in standard foundry BiCMOS process are utilized to achieve electrical isolation among on-chip photovoltaic (PV) cells in a close-packed manner. We successfully demonstrate a lifted open-circuit voltage of 1.04 V by connecting two on-chip PV cells in series as a proof-of-concept without requiring any in-foundry process modification.

Paper No.  2017-THU-P0102-P005
Jyun-Cong Lai Dynamic scattering based on ions-doped cholesteric liquid crystals
Wen-Fa Cheng;Cheng-Kai Liu;Jyun-Cong Lai;Hsiu-Ming Kuo;Chao-Hsuan Wu;Chung K. Lai;Ko-Ting Cheng

This study reports the electro-optical properties of bistable scattering mode light shutters, including driving voltage, driving frequency, response time, and variations of LC structure, based on ions-doped liquid crystals. With flexible substrate, such light shutters are suitable for the applications of e-paper.

Paper No.  2017-THU-P0102-P006
Yu-Chen Tsai Detection of Gold Nanoparticles Using Imaging Spectroscopic System
Yu-Chen Tsai;Wan-Shao Tsai

Spectral characteristics of gold nanoparticles with three different diameters 10, 50, and 70 nm were detected simultaneously using an imaging spectroscopic system based on a transmission-mode dark-field microscope and a Michelson interferometer. The measured plasmonic resonance spectra were compared with theoretical calculation, and both demonstrate the size-dependent spectral characteristics.

Paper No.  2017-THU-P0102-P007
Jia-Jin Lin Formation of continuously-chirped graphene oxide gratings by Lloyd’s interferometer with a convex mirror
Jia-Jin Lin;Tzu-Chieh Kao;Chia-Wei Kao;Chuan-Ci Yin;Yung-Jr Hung

Continuously-chirped gratings with a wide range of grating period are realized by a Lloyd’s interferometer equipped with a convex mirror. After transferring chirped grating pattern onto a thin graphene oxide film, the resulting ~20-nm-thick graphene oxide chirped gratings provide varying periods from 320 to 620 nm.

Paper No.  2017-THU-P0102-P008
Chien-Tsung Hou Electrically Tunable Large Three Dimensional Monocrystalline Blue Phase Photonic Crystal
Chien-Tsung Hou;Chun-Wei Chen;Cheng-Chang Li;Hung-Chang Jau;Chun-Ta Wang;Ching-Lang Hong;Duan-Yi Guo;Cheng-Yu Wang;Shen-Ping Chiang;Timothy J. Bunning;Iam-Choon Khoo;Tsung-Hsien Lin

We report the development of massive-sized monocrystalline three-dimensional photonic crystals by controlling the self-assembly processes which occur in blue phase liquid crystal. The tunable polymer stabilized single crystals with dimensions of ~1 cm exhibit extraordinarily sharp photonic bandgaps with high reflectivity, long-range periodicity in all dimensions and well-defined lattice orientation.

Paper No.  2017-THU-P0102-P009
Chun-Ron Chang Utilization of WO3 Nanorod Arrays as the Electron Transport Layer for Fabricating Hybrid Light-Emitting Devices
Chun-Kai Chang;Chun-Ron Chang;Sheng-Hsiung Yang;Apolline Puaud;Thien-Phap Nguyen

We demonstrate novel inverted light-emitting devices based on n-typed tungsten trioxide (WO3) nanostructures and polyethylenimine ethoxylated (PEIE) buffer layer. The best device based on WO3 nanorod arrays with height of 300 nm showed a max brightness of 3,079 cd/m2 and current efficiency of 0.22 cd/A.

Paper No.  2017-THU-P0102-P010
Sheng-Siang Huang Preparation and characterization of tungsten trioxide (WO3) thin films as the MEMS-type NOX gas sensors
Sheng-Siang Huang;Yu-Zung Chiou;Chun-Kai Wang;Shoou-Jinn Chang;Ting-Jen Hsueh;Sheng-Po Chang;Shih-Mao Lin

Tungsten trioxide (WO3) thin films as the MEMS-type NOx gas sensors were prepared by RF Sputter. The results of SEM images indicated that the grain sizes were increased with increasing the annealing temperature.

Paper No.  2017-THU-P0102-P011
Hai-Pang Chiang Employing Star-Shaped Gold/Silver Nanoparticles to Surface-Enhanced Raman Scattering (SERS) Substrate with Near Infrared Excitation
Chih-Hsien Lai;Guo-An Wang;Chung Wei Lee;Tzyy-Jiann Wang;Chih-Ching Huang;Hai-Pang Chiang

We report the usage of star-shaped gold/silver nanoparticles (NPs) to the surface-enhanced Raman scattering (SERS) substrate for near infrared studies. Under the 1064-nm excitation, the substrate with star-shaped NPs exhibits a Raman intensity 3.4 times stronger than that of the substrate with silver NPs.

Paper No.  2017-THU-P0102-P012
Dhruv Tyagi A Magnetically-Excited Plasmonic Metasurface for Multi-Directional Beam Steering
Dhruv Tyagi;C. B. Huang

In this work, we numerically present a plasmonic metasurface designed to achieve multi-directional routing into the far field. The metasurface is excited by a magnetic dipole with controlled polarizations, and upto seven distinct beam steering angles with high uni-directionality are obtained.

Paper No.  2017-THU-P0102-P013
Kuan-Chin Che Passive mode-locked ytterbium-doped fiber laser in all normal dispersion by graphene oxide
Kuan-Chin Che

We demonstrated the passively mode-locked ytterbium-doped fiber laser based on graphene oxide (GO)/polymer film. GO/polymer film was produced by ultrasonic vibration of GO powder and then mixed with polymer. With 24 mW pump power, the stabilized 23.2 MHz repetition rate mode-locked pulses with the characteristic of dissipative soliton was generated.

Paper No.  2017-THU-P0102-P014
Ren Jie Lin Giant SHG signal with vertical split ring resonators
Ren Jie Lin;Wei-Yi Tsai;Pin Chieh Wu;Hui-Hsin Hsiao;Jia-Wern Chen;Tsung Lin Chung;Greg Sun;Din Ping Tsai

We present a vertical split ring resonator (VSRR) based metamaterial to generate SHG. The second-harmonic generation of VSRR are dramatically increased several orders comparing with that of planar SRR. This work paves a new way in increasing the nonlinear efficiency and provides a new insight in designing new nonlinear sources.


Nanophotonic Materials and Devices

Nano-optics I
Friday, Dec. 8, 2017  08:30-10:15
Presider: Jiunn-Woei Liaw;Kuo-Ping Chen
Room: International Research Building IR1003 (1F)
08:30 - 08:45 Paper No.  2017-FRI-S0103-O001
Tzu-Yu Chen Award Candidate Ultrafast Second-Harmonic Generations in a Plasmonic Two-Wire Transmission-Line
Tzu-Yu Chen;Fan-Cheng Lin;Jer-Shing Huang;Chen-Bin Huang

A symmetric plasmonic two-wire transmission-line (TWTL) is successfully used for ultrafast second-harmonic generation (SHG). To our best knowledge, we provide the experimental evidence over SHG using surface plasmon polaritons. Interestingly, regardless of the two potential modes excited at the fundamental frequency, the resulting SHGs are always the asymmetric mode.

08:45 - 09:00 Paper No.  2017-FRI-S0103-O002
Shang-Yang Yu Award Candidate Light-Driven Self-Assembly and Coalescence of Gold Nanorods
Shang-Yang Yu;Yun-Ju Chen;Jiunn-Woei Liaw

Using the irradiation of a linearly-polarized laser, the light-driven oriented attachment and self-assembly of gold nanorods were induced. Process was conducted in a droplet of gold NR colloid on a glass irradiated by LP near-infrared low-power laser beam at room temperature and atmospheric pressure, without any assistance of chemical surfactant.

09:00 - 09:15 Paper No.  2017-FRI-S0103-O003
Yu-Heng Hong Award Candidate Solvent Engineering for Room-temperature Lasing of Lead Bromide Perovskite Thin Films
Yu-Heng Hong;Kao Tsung Sheng

Recently, hybrid metal-halide perovskites have attracted much attention due to their significant optoelectronic properties. However, it is still difficult for room-temperature laser applications of perovskite thin films. In this work, we have used the solvent-engineering process to prepared and demonstrated the room-temperature lasing of lead bromide perovskite thin films.

09:15 - 09:30 Paper No.  2017-FRI-S0103-O004
Bo-zhi Huang Gaussian beam propagation through an anomalous material by phase compensation
Bo-zhi Huang

A beam diffracts in free space due to the phase delay among its angular components. Such spreading beam can be suppressed by the anomalous material and even focused in the anomalous material and in free space. Two anomalous materials with different dispersions were analyzed to show the focusing performance.

09:30 - 09:45 Paper No.  2017-FRI-S0103-O005
Cheng-Ting Liao Enhanced Spontaneous Emission of 2D Transition Metal Dichalcogenide through Large-area Optical Slot Antenna Arrays
Cheng-Ting Liao;Meng-Chieh Yang;Ming-Chang Lee;Yi-Hsian Lee

We study the spontaneous emission rate of 2D transition metal dichalcogenide (TMD) which is enhanced with the aid of a large optical slot antenna array fabricated through a wafer-scale process. A nearly 10-fold enhancement of photoluminescence was experimentally observed

09:45 - 10:15 Paper No.  2017-FRI-S0103-I001
Invited Speaker:
Jeroen Beeckman
Integrated optical pure phase modulators based on PZT thin films
Jeroen Beeckman

We report on fast electro-optic modulation using hybrid integration of ferroelectric thin films on the SiN photonic platform. Efficient and high-speed modulation is made possible thanks to the high-quality deposition of a thin film of lead zirconate titanate onto the SiN photonic chip.


Nanophotonic Materials and Devices

Poster Session III
Friday, Dec. 8, 2017  12:30-14:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-FRI-P0103-P001
Jhe-Wei Lai The enhanced optoelectronic property on Ga-doped ZnO layers by various thermal annealing treatments
Jhe-Wei Lai;Chang-Li Liu;Yen-Sheng Lin

In this study, the GZO thin film had been treated with different thermal annealing temperatures, depend on rearrange the atomic depositing to improve the quality of thin film, which can effectively enhance the optoelectronic properties of GZO layer and promotes application of GZO on transparent conductive thin film in LED.

Paper No.  2017-FRI-P0103-P002
Zu-Po Yang Improvement of Color Saturation of Blue Light-emitting Electrochemical Cells by Employing Plasmonic Filters
Chien-Ming Fan Chiang;Bo-Ren Chang;Ya-Ju Lee;Monima Sarma;Zu-Po Yang;Hai-Ching Su;Hsyi-En Cheng;Ken-Tsung Wong;Yau-Chyr Wang

Here we demonstrated a novel method to improve blue saturation of the sky-blue LECs by engineering its emission spectrum through the plasmonic filters. With the integration of plasmonic filters, the color saturation was improved and the bluest LECs with higher efficiency (among the reported bluest LECs) was obtained.

Paper No.  2017-FRI-P0103-P003
Jhih-Hao Lin Light extraction of organic light-emitting diode with internal nanostructure
Jhih-Hao Lin;Hau-Chen Hsu;Guan Cheng Lin;Mao Kuo Wei;Tien-Lung Chiu;Chi-Feng Lin;Jiun-Haw Lee

We investigated the extraction efficiency of the organic light-emitting diode with internal structure sandwiched between glass substrate and indium-zinc-oxide anode. 19.7% enhancement was achieved in current efficiency.

Paper No.  2017-FRI-P0103-P004
Neng-Chieh Yu Spectral Study of Silicon Nanostructures at Visible Wavelength
Neng-Chieh Yu;Shu-Cheng Lo;Pei-Kuen Wei;Wan-Shao Tsai

The transmission spectra of low-loss silicon nanoslit array were studied at the visible wavelength. Transmission spectra were measured using an optical microscope and the simulation was based on finite-difference time-domain calculation. Spectral characteristics were discussed based on the slit periods. Both measurement and simulation results are in good agreement.

Paper No.  2017-FRI-P0103-P005
Bo-Yan Lai Fluorescence Lifetime Modification by Single Gold Nanoparticle Localized Surface Plasmon
Chou Lin Chun;Bo-Yan Lai;Yi-Chun Chen

Interactions between fluorephores and surface plasmon was investigated by a custom-built fluorescence lifetime system. Gold nanoparticle with double-stranded DNA on the surface was utilized to exactly control the distance between fluorephores and the nanoparticle. We calculated surface plasmon-induced changes in the radiative decay rate constant and the quenching rate constant.

Paper No.  2017-FRI-P0103-P006
Ho-Ting Tung Polarization gaps and anomalous dispersion in a hybrid metal-dielectric double gyroid
Zheng-Ying Lin;Yu-Chueh Hung;Ho-Ting Tung

Gyroid structure has attracted attention owing to its applications in photonic crystals and meta-materials. In this study, we investigate the polarization-dependent characteristics of a hybrid metal/dielectric double gyroid based on finite-difference time domain method. Polarization band gaps and anomalous dispersion are presented based on various hybrid scenarios.

Paper No.  2017-FRI-P0103-P007
Ching-An LU Nanotransfer printing process of plasmonic dimer-mushroom with reduced nanogap for high FOM refractive index sensing
Ching-An LU;Chun-Hung Lin

This study presents a simple process based on nanotransfer printing to fabricate the reduced nanogap dimer-mushroom structure. With this process, we can reveal the electric felid distribution of the structure to boost the sensing. We also calculated the spectrum of the structure to ensure the ability of sensing refractive index.

Paper No.  2017-FRI-P0103-P008
Shiang-Jen Ren UV sensing Organic Photodector: Modulating EBL Thickness for Low Dark Current Density
Shiang-Jen Ren;Chih-Chien Lee;Che-Wei Liu;Ya-Ze Li;Shun-Wei Liu;Sajal Biring;Yi-Nan Lin;Jing-Lin Hsieh;Meng-Zhen Li

We report a fullerene (C60) organic photodetectors with low dark current, by changing the thickness of hole blocking layer. Because of high energy barrier, the dark current could approximately achieve to 0.18 nA cm-2 at -1 V. It means that TAPC could hinder the electrons injection from the ITO

Paper No.  2017-FRI-P0103-P009
Wei Lun Huang Optical characteristics of self-assembled Gold nanoparticle on GaAs
Wei Lun Huang;Tsong Sheng Lay

Self-assembled gold nanoparticles are formed on GaAs substrate by incorporating a heat-absorbing Al2O3 oxide layer. We change the Al2O3 layer thickness to investigate the surface enhance Raman scattering (SERS) effect. We obtain maximum SERS magnification and lowest reflectance at Al2O3 = 11nm. The results are useful in solar cell applications.

Paper No.  2017-FRI-P0103-P010
Jeng-Yi Chen The transmission spectrum of a twist nematic liquid crystal doped with phosphor micro particles
Wen-Tse Shih;Jeng-Yi Chen;Ren-Hua Jang;Yu-Wei Liou

The spectrum changes induced from the doping of phosphor micro particles in a twist nematic liquid crystal cell was observed. The experimental results show that the achromatic transmission can be observed with a proper driving condition, which may be applied to the design of an achromatic liquid crystal device.

Paper No.  2017-FRI-P0103-P011
Kuo Chih-Fu High Electrochromic Properties of WO3 Modified ZnO Nanorods by Low-Temperature Hydrothermal Method
Kuo Chih-Fu

The ZnO nanorods (ZnR) were grown on the ZnO:Al (AZO) seed layer deposited ITO glass substrate by low temperature hydrothermal method. Electrochromic analyses show that the nanocomposite of WO3 modified ZnR with high surface-to-volume ratio exhibited faster switching time and higher coloration efficiency than WO3/AZO thin film.

Paper No.  2017-FRI-P0103-P012
Yi-Wei Hu Cu2SnSe3 (CTSe) thin film obtained by hybrid inks and selenization
Yi-Wei Hu

Cu2SnSe3 (CTSe) thin film was prepared successfully by using hybrid inks and selenization. The hybrid inks included Cu2Se and SnSe2 synthesized in polyetheramine (D400) solven. After selenization, and confirmed by XRD, Raman, UV-Vis, and SEM, the thin film was proved with high quality and high potential in solar cell applicatrion.

Paper No.  2017-FRI-P0103-P013
Shota Igawa Fabrication of zinc magnesium oxide nanowires using VLS method
Shota Igawa;Takaya Nakane;Takeshi Ishiyama

Nanostructured ZnO including nanowires, enables highly efficient emission. ZnMgO NWs were fabricated by vapor-liquid-solid (VLS) method. ZnMgO NWs has average diameter of 65±14 nm. The ultraviolet emission from ZnMgO NWs was blue-shifted to 375 nm from 383 nm with increasing Mg amount.

Paper No.  2017-FRI-P0103-P014
Ching Heng Chen Using CVD Method Growth ZnO nanowires Applied in Gas Sensor
Chi Feng Lin;Ching Heng Chen;Jhong Ming Syu;Hsieh Cheng Han;Tian You Cheng

In this study, we growth the ZnO nano-structure on copper wire with CVD method. The structure showed diode characteristics and environment sensitive owing to the light and gas sensitive of ZnO. Such device showed good response under various gas environment and the response in increase in further under light illumination.


Nanophotonic Materials and Devices

Nano-optics II
Friday, Dec. 8, 2017  13:00-14:30
Presider: Tien-Chang Lu;Hsu-Cheng Hsu
Room: International Research Building IR1003 (1F)
13:00 - 13:15 Paper No.  2017-FRI-S0104-O001
Yue Cheng Evanescent Modes Extraction based on Rigorous Coupled Wave Analysis for Dipole on a Nanorods Hyperbolic Slab
Yue Cheng;Cheng-Ting Liao;Ming-Chang Lee

When dipole locates very close to the metallic surface, enhanced spontaneous emission is exhibited and highest spatial components dominate the interaction. We simplify the nanorods hyperbolic metamaterials into an effective anisotropic slab and demonstrate enhanced farfield radiation for evanescent modes based on rigorous coupled wave analysis.

13:15 - 13:30 Paper No.  2017-FRI-S0104-O002
Zhi-Hong Xie The Rigorous Coupled Wave Analysis for Three-Dimensional Helix Photonic Crystals
Zhi-Hong Xie;Yu-Chueh Hung

We analyze optical properties of 3D periodic helix structures by the rigorous coupled-wave method. The convergence is resolved by the differential method combined with the formulation of normal vector field. The results are compared with FDTD method, and the validity is discussed based on different order number and geometrical arrangements.

13:30 - 13:45 Paper No.  2017-FRI-S0104-O003
Hsien YI Hsieh Surface states in photonic merged lattices
Hsien YI Hsieh;Ray-Kuang Lee

We present an efficient method to find the band structure for merged lattice, which is obtained as a result of merging two lattices of scatters of the same space group, but with slightly different spatial resonances. Morever, surface states in merged lattice can be engineered easily to create topological states.

13:45 - 14:00 Paper No.  2017-FRI-S0104-O004
Chih-Wei Yin Miniaturized Stokes Polarimeter Based on Reflective Meta-surface
Chih-Wei Yin;Chih-Ming Wang

The meta-surface is a two-dimensional material, consisting of subwavelength nano-metal structures distributed in the interface. The wavefront amplitude, phase and polarization can be adjusted by changing the geometrical parameters of the metal structure. This paper will show the use of miniaturized meta-surface to convert incident polarized light into Stokes vectors.

14:00 - 14:15 Paper No.  2017-FRI-S0104-O005
Yu-Hsuan Lee Characterizations of Enhancement-mode GaN HEMTs with Various Field-Plate Designs
Yu-Hsuan Lee;Chun-Hsun Lee;Jian-Jang Huang

In this research, p-GaN gate double heterostructure HEMTs with various gate field plate lengths are fabricated and we investigate the influence of field plates on the current behavior of p-GaN gate HEMTs.We propose a Threshold Enhancement model to explain the current behavior in p-GaN HEMT with field plate structure.

14:15 - 14:30 Paper No.  2017-FRI-S0104-O006
Chia Wei Kao An optical spectrometer based on continuously-chirped guided mode resonance gratings
Chia Wei Kao;Tzu Chieh Kao;Jia Jin Lin;Yung Jr Hung

A guided-mode-resonance filter based on continuously-chirped gratings and gradient Ta2O5 waveguide film is realized to provide sharp transmission dips at the resonant wavelengths with a constant filter linewidth of 5.48 nm across the wavelength of 525 to 700 nm.


Nanophotonic Materials and Devices

Poster Session IV
Friday, Dec. 8, 2017  14:30-16:00
Presider: -
Room: International Research Building 5F
Paper No.  2017-FRI-P0104-P001
Guan-Rong Chen Investigation of Room Temperature Stimulated Emission of ZnO/ZnMgO Multiple Quantum Wells
Guan-Rong Chen

Three MQWs with well thickness about 2.2 nm and barrier thicknesses about 7.2, 14.4 and 21.6 nm were produced by the pulsed laser deposition. Through the excitation of a Q-switched laser with central wavelength at 266 nm, the stimulated emission was excited as the excited energy set above certain threshold.

Paper No.  2017-FRI-P0104-P002
Jeng Yi Lee Manipulating inherent scattering signatures by tuning phase from two counter-propagating waves
Jeng Yi Lee;Ray-Kuang Lee

We show that under two same beams illumination in the setting of counter-propagating waves, light scattering by a single object can be completely manipulated through a proper phase control. Our results lead to switch off the resonant channels, or enhance the non-resonant ones.

Paper No.  2017-FRI-P0104-P003
Jau Sheng Wang Optical Fiber Coupler With Single Mode Fibers for Tuning Light Demutiplex/Multiplex
Jau Sheng Wang

This paper provides some guidelines for design and fabrication of the fused fiber based WDMs. . An analysis of the wavelength response of the fused fiber coupler is presented here. A combination of theoretical and numerical method is used to predict the channel spacing of WDM.

Paper No.  2017-FRI-P0104-P004
CHIEN-LIANG CHIU Through Glass Via Substrate with Metal or Conductive Adhesive Materials are Applied as Heat Dissipation Plate

The optimal TGV substrate heat dissipation sample of a 6×6 via array with 100μm in via diameter and 160μm in pitch are made. Metal or conductive adhesive materials are filled with TGV. The experimental thermal resistance results are agreement with the numerical analysis results the maximum tolerance is ±7.2°C/mW.

Paper No.  2017-FRI-P0104-P005
Chen Po Li To Improve Brightness and Hot Dissipation of N-side up AlGaInP-based LED by Low Temperature Substrate Transfer and Wafer Bonding Technique
Chen Po Li

We report to increase the brightness n side up red LED and to improve hot dissipation by the substrate transfer and wafer bonding technique. The GaAs substrate of AlGaInP LED was removed and then bounded on an alternative substrate CIC at low temperature .

Paper No.  2017-FRI-P0104-P006
Tao Chong Gap-Field Enhancement in Multi-Bent-Section Nano-Antennas and Linear Dipole Nano-Antennas
Tao Chong;Hung-chun Chang

Properly designed nano-antenna structure can enhance the incident electric fields at optical wavelengths in the antenna gap. We investigated the Multi-Bent-Section Nano-Antennas with different proportions of the bent section with the same total antenna length and the influence of the antenna length of the linear dipole antenna.

Paper No.  2017-FRI-P0104-P007
Kuan-Ting Lin Nonreciprocal Scattering of Si nanoparticles with gold films
Kuan-Ting Lin;Kuo-Ping Chen

The nonreciprocal scattering of silicon nanoparticle on gold film is studied. The scattering cross section is simulated. When light oblique incidents from the air, it shows different spectra due to the different polarization of light. In addition, a new peak appears when light incidents from the gold film.

Paper No.  2017-FRI-P0104-P008
Ping-Feng Hsieh Formation of uniform moiré phase-shifted gratings for distributed feedback laser applications
Ping-Feng Hsieh;Bing-Hao Shih;Jia-Jin Lin;Tzu-Hsiang Yen;Ping-Chien Chang;Wei Lin;Yung-Jr Hung

We successfully implement moiré resist gratings having uniform fill factors, diffraction efficiency (0.6%), and grating periods (0.039 nm) with a slowly-varying envelop of grating thickness across a 2-inch InP wafer area. Moiré grating structure can be applied to distributed feedback laser fabrication to improve the device performance and yield.


Nanophotonic Materials and Devices

Nano-optics III
Friday, Dec. 8, 2017  14:50-16:20
Presider: Chih-Ming Wang;Chin-Jung Chuang
Room: International Research Building IR1003 (1F)
14:50 - 15:05 Paper No.  2017-FRI-S0105-O001
Jian-Heng Chen Graphene-based Micropatterns Using Ultrafast Laser Direct Writing on Ni/C Film
Yu-Hsiang Chen;Jian-Heng Chen;Chun-Yu Lin;Shean-Jen Chen

In this study, to fabricate graphene-based pattern/device by using femtosecond laser direct writing on Ni and C hybrid (Ni@C) film is investigated. The single-step fabrication approach requires no extra film transfer process and provides superior graphene quality compared to chemical vapor deposition.

15:05 - 15:20 Paper No.  2017-FRI-S0105-O002
Bo-Lun Jian Identification of dispersion relation from quasi-whispering gallery modes of an individual CH3NH3PbI3 perovskite microcrystal
Bo-Lun Jian;Zi-Wei Huang;Yan-Ting Liu;Hsu Cheng Hsu

We report on the wavelength dependence of the refractive index in single well-faceted CH3NH3PbI3 perovskite quasi-whispering-gallery-mode (quasi-WGM) microcrystal using micro-photoluminescence technique. The observed cavity modes are well matched to TM polarization quasi-WGMs in long wavelength. We deduced a Sellmeier’s dispersion function for perovskite microcrystals.

15:20 - 15:35 Paper No.  2017-FRI-S0105-O003
Huang Che Hsuan Spectral Model of Multiple-Layer of Hybrid Colloidal Quantum Dots for Light Emitting Diodes
Huang Che Hsuan

A semi-empirical model is developed to model the multiple-layer structure of hybrid colloidal quantum dots in light emitting diodes. The layer-sequence effect of the quantum dots matches with the measured data and the optimal condition is obtained.

15:35 - 15:50 Paper No.  2017-FRI-S0105-O004
Ching-Ting Lee Performance Improvement of Electron Injection Layer in Inverted Polymer White LED with Quantum Dots Emission Layer
Shuo-Wen Yen;Po-Sung Su;Ching-Ting Lee;Hsin-Ying Lee

Various-dimensional CdSe/ZnS quantum dots (QDs) and poly(N-vinylcarbazole) (PVK) polymer material were mixed as the emission layer of inverted white organic light-emitting diodes (WOLEDs). The performances of the WOLEDs with various ZnO thicknesses were investigated. The WOLEDs with a 25-nm-thick ZnO electron injection layer exhibited the luminous efficiency of 2.30 cd/A.

15:50 - 16:05 Paper No.  2017-FRI-S0105-O005
Kuan-Yu Chou Enhanced Near-band-edge Luminescence of Single ZnO Microrod Based Light Emitting Diodes via Coupling with Localized Surface Plasmon of Al nanoparticles
Kuan-Yu Chou;Dai-Jie Lin;Hsu-Cheng Hsu

We demonstrate localized surface plasmon (LSPR) enhanced electroluminescence from n-ZnO microrod/p-GaN light emitting devices decorated with aluminum nanoparticles(Al-NPs). Ultraviolet/violet near-band-edge emission of LED is significantly enhanced more than 5-fold. Reduction in photoluminescence lifetime of ZnO indicates the improved performance of the device stems from LSPR coupling between ZnO and Al-NPs.

16:05 - 16:20 Paper No.  2017-FRI-S0105-O006
Chung-Ping Yu Characteristics of Different Co-Precipitation Methods for Embedded CdTe Quantum Dots
Chung-Ping Yu;Li-Ann Ke;Yu-Ming Huang;Shun-Chieh Hsu;Yin-Han Chen;Chien-Chung Lin;Hao-Chung Kuo

In this paper, three different synthetic methods capped the cadmium telluride quantum dots (CdTe) by sodium chloride crystals. Inorganic NaCl ionic crystal is the protection layer of quantum dots. The aging test is over 900 hours, and the tradition method can maintain the most convert efficiency.