Profile

Shin-ichiro Inoue, Ph.D.Director
Shin-ichiro Inoue, Ph.D.

Advanced ICT Research Institute, Director of DUV ICT Device Advanced Development Center

NICT (National Institute of Information and Communications Technology)
588-2 Iwaoka, Nishi-ku, Kobe 651-2492 Japan
E-mail: s_inoue [Please add “@nict.go.jp”]

Career

March 2004 Ph.D. (Engineering), Tokyo Institute of Technology
2004-2006 RIKEN, Nanoscience Program, Special Postdoctoral Researcher
2007-2009 Kyushu University, Institute for Materials Chemistry and Engineering, Assis. Professor
2007- RIKEN: Guest Researcher
2010- NICT: Senior Research Scientist ~ Director (Present post)
2011- Visiting Associate Professor, Graduate School of Engineering, Kobe University
(2011-2016 Visiting Associate Professor, 2017- Visiting Professor)
2013-2017 PRESTO (Precursory Research for Embryonic Science and Technology) Researcher, Japan Science and Technology Agency

News

2015.4.21
Our achievements in the DUV-LEDs was introduced in the online magazine
"Semiconductor Today"
The article title: Increasing power and efficiency of 265nm-wavelength LEDs
2015.4.7
It was published in the newspaper "The Nikkei". "10 times stronger in deep-ultraviolet irradiation and highly efficient sterilization LED, NICT"
2015.4.7
It was published in the newspaper "Nikkei Sangyo Shimbun". "LED sterilization improvement and 9 times increasing power in deep-ultraviolet region, NICT"
2015.4.3
It was published in the newspaper "FujiSankei Business i". "Favorable impression on the successful development of deep-ultraviolet LED."
2015.4.2
The achievement in deep-ultraviolet LED was reported in TV Tokyo News channel (M plus 11).
2015.4.2
It was published in the newspaper "Nikkan Kogyo Shimbun". "Maximum output power exceeds 90 mW, development of smart deep-ultraviolet LEDs by NICT"
2015.4.1
It was published in the online magazine "Nikkei Technology Online". "High output power deep-ultraviolet LED and an alternative to replace the mercury lamp for sterilization"
2015.4.1
Press Release　"Successful development of the deep-ultraviolet LEDs with world's highest output power (over 90mW) "
2014.9.17
JSAP (The Japan Society of Applied Physics) Outstanding Paper Award:
“Performance and Reliability of Deep-Ultraviolet Light-Emitting Diodes Fabricated on AlN Substrates Prepared by Hydride Vapor Phase Epitaxy” Appl. Phys. Express 6 092103 (2013)
2013.11.25
My research was adopted by A-STEP of Japan Science and Technology Agency (JST).
Web Site is here.
2013.10.23
It was published in the newspaper " Nikkei Sangyo Shimbun". "Computer　Speed of 100 times　It changes into a light signal at high speed."
2013.10.21
Press Release "Demonstration of extremely small electro-optic (EO) modulator with high modulation efficiency composed of EO polymer/silicon hybrid one-dimensional photonic crystal waveguides."
2013.10.01
My research was adopted by"PRESTO Research" of Japan Science and Technology Agency (JST).
Web Site is here.
2013
Paper was chosen as the "Spotlights" : Editors' Choice from APEX and JJAP.
Appl. Phys. Express 6 092103 (2013)
2013.01.11
It was published in the newspaper "Nikkei Sangyo Shimbun"
"Development of Deep-Ultraviolet Light-Emitting Diodes (DUV LEDs)"

Field of Research

Optoelectronics, Nanophotonics, Photonic Crystals, Nonlinear Optics, Applied Optics,Nanolithography, Optical/ Electronic Materials Engineering, Quantum Optical Engineering, Photonic Devices

Research Interests

We have studied engineering the matter-radiation interaction by nano-structure fabrication technology. We aim to realize dramatic improvements in the performance of optical devices and open up new possibilities in optical applications such as highly efficient compact photonic devices by controlling the matter-radiation interaction based on nanolithography, material science, optical devices technology, laser optics, and computational optoelectronics.

  1. Fabrication and optical investigation of new functional materials and devices
  2. Design and fabrication of new functional photonic crystal devices
  3. Development of optical functional materials
  4. Fundamental studies of nonlinear optical phenomena in photonic crystals and nano-structures
  5. Development of light extraction technology of deep-ultraviolet light-emitting diodes
  6. Development of nanofabrication technology and laser spectroscopy system
  7. Design and development of high-efficient light-emitting diode, laser, wavelength convertor, optical sensing, modulator, and switching devices

[Keywords]: Photonic crystals, Nano-photonic structure, Nanolithography, DUV-LEDs, Light-extraction technology, Nonlinear optics, Electro-optic modulators, Laser Spectroscopy, 3D-FDTD calculations, Optical devices technology, Inorganic nonlinear optical crystals, Organic nonlinear optical polymer, Optical wavelength conversions, THz waves, Deep UV laser, Ultrafast optical switching, High-sensitive optical sensing, etc.

Selected Publications

  1. S. Inoue, N. Tamari, T. Kinoshita, T. Obata, and H. Yanagi, "Light extraction enhancement of 265 nm deep-ultraviolet light-emitting diodes with over 90 mW output power via an AlN hybrid nanostructure", Appl. Phys. Lett., 106, 131104-1-3 (2015)
  2. T. Kaji, K. Kasai, Y. Haruyama, T. Yamada, S. Inoue, Y. Tominari, R. Ueda, T. Terui, S.Tanaka, A. Otomo, "Enhanced photocurrent generation from bacteriorhodopsin photocells using grating-structured transparent conductive oxide electrodes", J. Nanosci. Nanotechnol. accepted for publication(2015)
  3. K. Waki, T. Yamashita, S. Inoue, S. Miki, H. Terai, R. Ikuta, T. Yamamoto, and N. Imoto, "Fabrication and Characterization of Superconducting Nanowire Single-Photon Detectors on Si Waveguide", IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 25, 2200704-1-4 (2015)
  4. S. Ishii, S. Inoue, Reiko Ueda, and A. Otomo, “Optical detection in a waveguide geometry with a single metallic contact”, ACS Photonics, 1, 1089-1092 (2014).
  5. T. Kinoshita, H. Yanagi, and S. Inoue, “Polarity control of AlN layers grown on sapphire substrates by oxygen doping during AlN nucleation”, Journal of Crystal Growth, 386, 76-79 (2014).
  6. S. Ishii, S. Inoue, and A. Otomo, “Electric and magnetic resonances in strongly anisotropic particles”, J. Opt. Soc. Am. B, 31, 218-222 (2014).
  7. S. Inoue and A. Otomo, “Electro-optic polymers/silicon hybrid slow light modulator based on one-dimensional photonic crystal waveguides”, Appl. Phys. Lett., 103, 171101-1-4 (2013).
  8. T. Kinoshita, T. Obata, H. Yanagi, and S. Inoue, “High p-type conduction in high-Al content Mg-doped AlGaN”, Appl. Phys. Lett., 102, 012105-1-3 (2013).
  9. T. Kinoshita, T. Obata, T. Nagashima, H. Yanagi, B. Moody, S. Mita, S. Inoue, Y. Kumagai, A. Koukitu, and Z. Sitar, “Performance and Reliability of Deep-Ultraviolet Light-Emitting Diodes Fabricated on AlN Substrates Prepared by Hydride Vapor Phase Epitaxy”, Appl. Phys. Express, 6, 092103-3 (2013).
  10. T. Kaji, T. Yamada, S. Ito, H. Miyasaka, R. Ueda, S. Inoue, and A. Otomo, “Controlled spontaneous emission of single molecules in a two-dimensional photonic band gap”, J. Am. Chem. Soc., 135, 106?109 (2013).
  11. S. Ishii, S. Inoue, and A. Otomo, “Scattering and absorption from strongly anisotropic nanoparticles ”, Opt. Express., 21, 23181-23187 (2013).
  12. T. Kinoshita, K. Hironaka, T. Obata, T. Nagashima, R. Dalmau, R. Schlesser, B. Moody, J. Xie, S. Inoue, Y. Kumagai, A. Koukitu, and Z. Sitar, “Deep-Ultraviolet Light-Emitting Diodes Fabricated on AlN Substrates Prepared by Hydride Vapor Phase Epitaxy”, Appl. Phys. Express, 5, 122101-3 (2012).
  13. X. Piao, X. Zhang, S. Inoue, S. Yokoyama, I. Aoki, H. Miki, A. Otomo, and H. Tazawa, “Enhancement of electro-optic activity by introduction of a benzyloxy group to conventional donor-π-acceptor molecules”, Organic Electronics, 12, 1093-1097 (2011)
  14. X. Piao, X. Zhang, Y. Mori, M. Koishi, A. Nakaya, S. Inoue, I. Aoki, H. Miki, A. Otomo, and S. Yokoyama, “Nonlinear optical side-chain polymers postfunctionalized with high-β chromophores exhibiting large electro-optic property”, Journal of Polymer Science: Part A: Polymer Chemistry, 49, 47-54 (2011).
  15. K. Sasaki, S. Inoue, K. Nishio, H. Masuda, A. Otomo, and S. Yokoyama, “Polymer Micro-structure Embedded in Two-Dimensional Photonic Crystals”, Opt. Mater., 32, 543-546 (2010).
  16. A. Inoue, S. Inoue, and S. Yokoyama, “Enhanced electro-optic response of a poled polymer in a reflective microcavity”, Optics Communications, 283, 2935-2938 (2010).
  17. X. Zhang, X. Piao, S. Inoue, and S. Yokoyama, “Nonlinear optical chromophores for electro-optical applications”, Journal of Novel Carbon Resource Sciences, 1, 14-15 (2010).
  18. X. Zhang, I. Aoki, X. Piao, S. Inoue, A. Otomo, H. Tazawa, and S. Yokoyama, “Effect of modified donor units on the molecular hyperporlarizability for thienyl-vinylene bridge based nonlinear optical chromophores”, Tetrahedron Letters, 51, 5873-5876 (2010).
  19. S. Inoue and S. Yokoyama, “Numerical simulation of an ultra-compact electro-optic modulator based on nanoscale plasmon metal gap waveguides”, Electron. Lett., 45, 1087-1089 (2009).
  20. S. Inoue and S. Yokoyama, “Nonlinear optical responses in Two-dimensional photonic crystals”, Thin Solid Films, 518, 470-472 (2009).
  21. X. Piao, S. Inoue, S. Yokoyama, H. Miki, I. Aoki, A. Otomo and H. Tazawa, “Synthesis and characterization of binary chromophore polymers for electro-optic application”, Thin Solid Films, 518, 481-484 (2009).
  22. S. Inoue and S. Yokoyama, “Enhancement of two-photon excited fluorescence in two-dimensional nonlinear optical polymer photonic crystal waveguides”, Appl. Phys. Lett., 93, 11110 1-3 (2008).
  23. S. Inoue, S. Yokoyama, and Y. Aoyagi, “Direct determination of photonic band structure for waveguiding modes in two-dimensional photonic crystals”, Opt. Express, 16, 2461-2468 (2008).
  24. M. Okinaka, S. Inoue, K. Tsukagoshi, and Y. Aoyagi, “Defect-free two-dimensional-photonic crystal structures on a nonlinear optical polymer patterned by nanoimprint lithography”, J. Vac. Sci. Technol. B, 25, 899-901 (2007).
  25. S. Inoue, and Y. Aoyagi, “Ultraviolet second-harmonic generation and sum-frequency mixing in a two-dimensional nonlinear optical polymer photonic crystal”, Jpn. J. Appl. Phys. 45, 6103-6107 (2006).
  26. M. Okinaka, S. Inoue, K. Tsukagoshi, and Y. Aoyagi, “Nonlinear optical polymer patterned by nanoimprint lithography as a photonic crystal waveguide structure”, J. Vac. Sci. Technol. B 24, 271-273 (2006).
  27. S. Inoue, and Y. Aoyagi, “Design and fabrication of two-dimensional photonic crystals with predetermined nonlinear optical properties”, Phys. Rev. Lett. 94, 103904 1-4 (2005).
  28. S. Inoue, and Y. Aoyagi, “Photonic band structure and related properties of photonic crystal waveguides in nonlinear optical polymers with metallic cladding”, Phys. Rev. B 69, 205109 1-6 (2004).
  29. S. Inoue, K. Kajikawa, and Y. Aoyagi, “Dry-etching method fabricating photonic-crystal waveguides in nonlinear optical polymers”, Appl. Phys. Lett. 82, 2966-2968 (2003).
  30. S. Inoue, and K. Kajikawa, “Inductivity coupled plasma etching to fabricate the nonlinear optical polymer photonic crystal waveguides”, Mater. Sci. Eng. B 103, 170-176 (2003).
  31. S. Inoue, K. Ueda, H. Hosono, and N. Hamada, “Electronic structure of the transparent p-type semiconductor (LaO)CuS”, Phys. Rev. B 64, 245211 1- 5 (2001).
  32. K. Ueda, S. Inoue, N. Sarukura, M. Hirano, and H. Hosono, “Room-temperature excitons in wide-gap layered-oxysulfide semiconductor: LaCuOS”, Appl. Phys. Lett. 78, 2333 (2001).
  33. H. Yanagi, S. Inoue, K. Ueda, H. Kawazoe, and H. Hosono, “Electronic structure and optoelectronic properties of transparent p-type conducting CuAlO2”, J. Appl. Phys. 88, 4159 (2000).
  34. K. Ueda, S. Inoue, H. Hirose, H. Kawazoe, and H. Hosono, “Transparent p-type semiconductor: LaCuOS layered oxysulfide”, Appl. Phys. Lett. 77, 2701 (2000).

Awards & Honors

2005.2.22 Seiichi Tejima Doctoral Dissertation Award
2005.3.12 FUNAI Information Technology Incentive Award
2005.6.25 Ando Incentive Prize for the Study of Electronics
2006.3.14 The Research Award from Research Foundation for Opto-Science and Technology
2006.5.12 The RIKEN FRS Promotion Award
2007.3.9 The RIKEN Special Postdoctoral Researcher Poster Award
2008.11.25 NPG(Nature Publishing Group)Nature Asia Materials
"Research Highlight"
2008.12.18 ICNME2008 Outstanding Poster Presentation Award
2013.3.27 The 60th JSAP Spring Meeting 2013 Poster Award
2014.9.17 JSAP Outstanding Paper Award