2026

1. Theoretical and Numerical Investigation of Ellipicity-Driven Adiabatic Mode Evolution in High-Index-Contrast Optical Fibers
2. High-index polymer photonic wire interconnection toward scalable co-packaged optics
3. Proposal of a 3×3 Topological Optical Coupler using Orbital Angular Momentum Interference
4. Enhancement of Eyebox Size and Luminance Uniformity in AR Waveguide Displays Using a Triangular-Pyramidal Two-Dimensional Diffraction Grating
5. An Eye-Tracking-Optimized Medical AR Display with Surface-Relief Gratings for Upward Viewing
6. NIL process using a photopolymer master mold fabricated by grayscale lithography
7. Proposal of AR glasses for unobstructed view to support medical procedures
8. Wafer-scale fabrication of silicon passive components using UV-nanoimprint lithography

2025

9. Realization of high-speed 3D waveguide analysis model via transfer learning based on 2D-FDTD simulation
10. Mechanism and demonstration of interference and multi-port switching in silicon topological photonics
11. Photonic wire bonding using world’s highest refractive index UV curable resin for dip-in 3D laser lithography
12. Fabrication of photonic wire bonding using a developed polymer with a refractive index of 1.65 for direct laser writing
13. Interferometry switching effect in silicon topological photonics
14. Circular polarization splitter using topological photonics
15. Transfer learning for optimizing topological Z-bending waveguide
16. Development of fabrication technology for silicon photoniccircuits using UV nanoimprint lithography
17. Proposal of single-layer full-color AR glasses with two-dimensional mesh diffraction gratings
18. An on-Chip optical skyrmion crystal beam generator using vertically-bent waveguides
19. On-chip circular polarization generators using valley photonic crystals
20. World’s highest refractive index photoresist for dip-in 3D laser lithography
21. Development of silicon photonics process using UV nanoimprinting

2024

22. Coupling structure for enabling both wafer- and chip-level characterization of silicon photonic integrated circuits

2023

23. Port switching of topological edge transmission using phase interference on Si-topological waveguide
24. Experimental Investigation for Meron Polarization Textures in Band Structures of Valley Photonic Crystals

2022

25. High Temperature Operation of Membrane Photonic Integrated Circuits with Buried-Ridge-Waveguide on Si​
26. Low threshold current operation of membrane DR laser on Si with buried-ridge waveguide and ACPM grating for On-chip Optical Interconnection
27. Expanded Optical Waveguide Theory with Magneto-Optical Effect and Magnetoelectrical Effect
28. Characteristics of GaInAsP/SOI Hybrid Semiconductor Optical Amplifier with InP-based Two-storied Ridge Structure
29. Optical Dispersion Properties of Topological Photonic Crystals Using Infrared Photonic Band Diagram Microscope
30. Mode-Selective Band-Tuned Topological Waveguide

2021

31. Nonvolatile Magneto-optical Switches for Reconfigurable Photonic Integrated Circuits
32. Low Thermal Resistance of Membrane Distributed Feedback Laser Fabricated by Nano-film Assisted Roomtemperature Surface Activated Bonding
33. Parameter Dependence of a 1.3-µm SiN Compact Wavelength MUX/DEMUX designed by Inverse Design Algorithm
34. Proposal of ReLU activation function using III-V semiconductor membrane laser for optical neural network
35. Measurement of Optical Dispersion Properties in Topological Photonic Crystals​
36. Investigation of Chip-on-wafer Direct Bonding Method for Hybrid Integration​
37. Lasing Characteristics of GaInAsP Membrane Distributed-Reflector Laser on Si with Buried Ridge Waveguide Structure
38. Design of Topological Transmission Lines with Mode Selectivity by Band Tuning​
39. Chip-on-wafer Bonding for III-V/Si Heterogeneous Integration
40. Lateral Optical Confinement Enhanced GaInAsP Membrane Laser on Si for On-chip Optical Interconnection
41. Reflectivity Tunable Mirror with MZI and Loop Waveguide on SOI for Reconfigurable Photonic Integrated Circuit
42. Thermal Resistance Reduction Of GaInAsP/Si Membrane Laser Bonded By Room Temperature Sinano-film Assisted Surface Activated Bonding

2020

43. Investigation of Thermal Shunt Structure of Semiconductor Membrane Laser Based on BCB Bonding for Enhancing Heat Evacuation
44. Buried-Ridge-Waveguide Type GaInAsP/InP Membrane Lasers for Reduction of Differential Resistance
45. Topological Taper Structure for High-Efficiency Coupling between Si Wire Waveguide and Topological Waveguide
46. Topological Power Splitter on Si-photonics Platform
47. Optical vortex splitter using topological edge state waveguide
48. Optical vortex beam splitter using topological edge state waveguide
49. 1020-nm-band optical cloak using double-layered metamaterial film

2019

50. InP/SiO2/Si Surface Activated Bonding Assisted by Si Nano-Film
51. Design of Low Loss InP-Based Membrane Optical Components on Si Substrate​
52. Fabrication of Si Photonics Waveguides by Thick Resist-Mask Electron Beam Lithography Proximity Effect Correction
53. Broadband Si waveguide loop mirror with curved directional coupler
54. Analysis of SU-8/CYTOP membrane waveguide and metal grating coupler for organic membrane photonic integrated circuits
55. Taper Length Dependence of Double-Taper-Type Coupler for GaInAsP/SOI Hybrid Integrated Platform
56. Buried-ridge-waveguide Type GaInAsP/InP Membrane Distributed-Reflector Lasers for Reduction of Differential Resistance
57. Investigation of InP/Si bonding condition for optimizing Photoluminescence property by Surface Activated Bonding based on Fast Atom Beam
58. High Yield Chip-on-wafer Low Temperature Plasma Activated Bonding for III-V/Si Hybrid Photonic Integration
59. Metamaterial infrared refractometer for detecting broadband complex refractive index of liquid material
60. Control of slow-light effect in metamaterial-loaded Si waveguide
61. Orbital Angular Momentum Mux/Demux Module Using Vertically Curved Si Waveguides

2018

62. Energy Cost Study of Membrane Distributed-Reflector (DR) Lasers for High-Speed Modulation
63. Investigation of Photoluminescence Intensity of GaInAs/InP Quantum-Wells Irradiated by Various Fast Atom Beam Sources
64. Energy Cost Analysis of Ridge-waveguide Type Membrane Distributed-Reflector Lasers for On-chip Application
65. p-MoS2/HfS2 van der Waals Heterostructure Transistor Using Ni Backgate Buried in HfO2 Dielectric
66. Design of GaInAs/InP membrane p-i-n photodiode with back-end distributed-Bragg-reflector (DBR)
67. Broadband Infrared Refractive Index Measurement Using Plasmonic Antenna Resonance
68. Comparison of FMCW-LiDAR system with optical- and electrical- domain swept light sources toward self-driving mobility application
69. Investigation of InP/Si Die-to-wafer Low-Temperature Plasma Activated Bonding for Heterogeneous Integrated Substrate
70. Fabrication of InGaAs Nanosheet Transistors with Regrown Source
71. Photoluminescence Properties of GaInAs/InP Layers by Ar Fast Atom Beam for Room Temperature Surface Activated Bonding Toward Hybrid PIC
72. High Efficiency Optical Mode Coupling Between Si Waveguide and III-V/Si Hybrid Sections by Double Taper-Type Coupler Structure
73. Reduction of Lasing Wavelength Variation Due to Injection Current into GaInAsP/InP Membrane Distributed-Reflector Laser Bonded on Si
74. Introduction of Ridge-Waveguide Structure for Low-Power Operation of GaInAsP/InP Membrane Distributed-Reflector Laser
75. Slow-light Si-wire Waveguide with Metamaterial
76. Infrared Invisibility Cloak Using Rolled Metamaterial Film

2017

77. Analysis of Slow-light Effect in Metamaterial Optical Waveguide
78. Effect of Ar-FAB irradiation to PL Characteristics of GaInAs/InP toward room temperature surface activated bonding
79. Low Power Operation of Membrane Distributed-Reflector Lasers on Si
80. PAM-4 direct modulation of GaInAsP/InP membrane DR laser on Si substrate
81. Membrane-based GaInAs/InP waveguide-type p-i-n photodetector fabricated on Si substrate using Benzocyclobutene bonding
82. Type II HfS2/MoS2 heterojunction Tunnel FET
83. Bragg Wavelength Detuning Effect on Temperature Dependences of GaInAsP/InP Membrane Lasers
84. Design of Low-power-consumption Membrane Photodiode toward On-chip Optical Interconnection
85. Resistance Reduction of GaInAsP/InP Membrane DR Lasers on Si
86. Metamaterial Optical Buffer Based on Slow-light Effect
87. High Efficiency Operation Of Membrane Distributed-Reflector Laser With Reduced Index Coupling Coefficient Structure
88. Organic Membrane Photonic Waveguide with Metal Grating Couplers
89. High Efficiency and High-speed Modulation Characteristics of Membrane Distributed-Reflector Laser on Si
90. Temperature Dependence of Threshold Current off GaInAsP/InP Membrane Lasers with Bragg Wavelength Detuning
91. Waveguide Loss Reduction of GaInAsP/InP Membrane Lasers by Reduction of Doping Concentration of p-InP Cladding Layer
92. Novel Optical-mode Converter Between III-V/SOI Hybrid Devices

2016

93. Bandwidth Analysis of Lateral-current-injection Membrane DFB Laser by Impedance Measurements
94. High Efficiency Lasing Characteristics of Membrane Distributed-Reflector Lasers
95. Interlayer Transition Couplers for 3D Optical Circuit
96. Room-temperature Continuous-wave Operation of GaInAsP/SOI Hybrid Laser Fabricated by N2 Plasma Activated Bonding
97. Monolithically Integrated 10 Gbit/s Optical Link on Si using Membrane DFB Laser and PIN-Photodiode
98. An Investigation on the Waveguide Loss Reduction of Membrane Lasers
99. Double Taper Interlayer Transition Coupler for 3D Optical Interconnection with Heterogeneous Material Stacking
100. 10 Gbit/s Data Transmission through Optical Link by Using Membrane DFB Laser and PIN-PD