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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| LQE, ED, CPM | 2023-12-01 16:40 |
Shizuoka | Development of Shorter Wavelength 230 nm-Band Far-UVC LEDs and Realization of High Output Power LED Panels Mitsuhiro Muta, Hiroyuki Oogami, Kengo Mouri, Hirokazu Kawashima (Nippon Tungsten), Noritoshi Maeda, Ajmal Khan, Yukio Kashima, Eriko Katsuura, Yuuki Nakamura, Kou Sumishi, Taiga Kirihara (RIKEN), Sachie Fujikawa, Hiroyuki Yaguchi (Saitama Univ), Yasushi Iwaisako (Nippon Tungsten), Hideki Hirayama (RIKEN)  ED2023-37 CPM2023-79 LQE2023-77 |
AlGaN-based 230nm-band far-UVC LEDs that is harmless to the human body were developed toward achievements of shorter wav... [more] | ED2023-37 CPM2023-79 LQE2023-77 pp.102-105 |
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| CPM, ED, LQE | 2022-11-25 13:40 |
Aichi | Winc Aichi (Aichi Industry & Labor Center) (Primary: On-site, Secondary: Online) |
Efficiency Improvement of 230 nm-band AlGaN based LEDs with Al Compositional Graded Layer Noritoshi Maeda, Yukio Kashima, Eriko Matsuura (RIKEN), Yasushi Iwaisako (NT), Hideki Hirayama (RIKEN) ED2022-45 CPM2022-70 LQE2022-78 |
Inactivation of SARS-CoV-2 using far-ultraviolet C 230 nm band LEDs has attracted attention. As an approach to improve t... [more] | ED2022-45 CPM2022-70 LQE2022-78 pp.93-98 |
| CPM, ED, LQE | 2022-11-25 14:30 |
Aichi | Winc Aichi (Aichi Industry & Labor Center) (Primary: On-site, Secondary: Online) |
ED2022-47 CPM2022-72 LQE2022-80 |
[more] | ED2022-47 CPM2022-72 LQE2022-80 pp.103-106 |
| LQE, CPM, ED | 2020-11-27 14:50 |
Online | Online | Internal quantum efficiency and excitonic stimulated emission properties of AlGaN-based UV-C multiple quantum wells Hideaki Murotani (NIT, Tokuyama Coll.), Ryohei Tanabe, Keisuke Hisanaga, Akira Hamada, Kanta Beppu (Yamaguchi Univ.), Noritoshi Maeda, M. Ajmal Khan, Masafumi Jo, Hideki Hirayama (RIKEN), Yoichi Yamada (Yamaguchi Univ.) ED2020-23 CPM2020-44 LQE2020-74 |
Internal quantum efficiency (IQE) and stimulated emission properties of AlGaN-based UV-C multiple quantum wells have bee... [more] | ED2020-23 CPM2020-44 LQE2020-74 pp.87-90 |
| ED, THz [detail] | 2019-12-23 13:40 |
Miyagi | Near- and far-infrared quantum cascade lasers based on GaAs and GaN semiconductor materials
-- Devices design and MBE growth -- Li Wang, Lin Tsung-Tse, Ke Wang, Hideki Hirayama (RIKEN) ED2019-77 |
[more] | ED2019-77 pp.5-8 |
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| ED, THz [detail] | 2019-12-23 14:05 |
Miyagi | Progress on high output power THz QCLs developed by reducing horizontal parasitic current leakage Tsung-Tse Lin, Li Wang (RIKEN), Ke Wang (Nanjing Univ.), Hideki Hirayama (RIKEN) ED2019-78 |
Terahertz quantum cascade lasers (THz QCLs) are a promising high output semiconductor based THz sources with narrow band... [more] | ED2019-78 pp.9-12 |
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| CPM, LQE, ED | 2019-11-22 12:45 |
Shizuoka | Shizuoka Univ. (Hamamatsu) | Progress of UVC-LEDs using DC sputter AlN templates Yosuke Mogami (RIKEN/Saitama Univ.), Atsushi Osawa, Kazuto Ozaki, Yukitake Tanioka, Atsushi Maeoka (SCREEN), Yuri Itokazu, Syunsuke Kuwaba (RIKEN/Saitama Univ.), Masafumi Jo, Noritoshi Maeda (RIKEN), Hiroyuki Yaguchi (Saitama Univ.), Hideki Hirayama (RIKEN) ED2019-53 CPM2019-72 LQE2019-96 |
A high-quality AlN substrate or template is required to realize AlGaN-based UVC-LEDs which has a wide range of applicati... [more] | ED2019-53 CPM2019-72 LQE2019-96 pp.85-88 |
| ED, LQE, CPM | 2018-11-29 13:50 |
Aichi | Nagoya Inst. tech. | Recent progress toward realization of AlGaN deep UV LD Noritohsi Maeda (RIKEN), Yoichi Yamada (Yamaguchi Univ.), Masafumi Jo, Hideki Hirayama (RIKEN) ED2018-34 CPM2018-68 LQE2018-88 |
[more] | ED2018-34 CPM2018-68 LQE2018-88 pp.9-12 |
| ED, LQE, CPM | 2018-11-30 14:30 |
Aichi | Nagoya Inst. tech. | Recent Progress towards realizing GaN/AlGaN Quantum Cascade Lasers Ke Wang, Li Wang, Lin Tsung Tse, Hideki Hirayama (RIKEN) ED2018-51 CPM2018-85 LQE2018-105 |
The potential GaN/AlGaN THz QCL has been analyzed theoretically in details. Room temperature THz lasing is predicted and... [more] | ED2018-51 CPM2018-85 LQE2018-105 pp.87-90 |
| EMD, LQE, OPE, CPM, R | 2018-08-24 11:15 |
Hokkaido | Otaru Camber of Commerce & Industry | Recent progress of high output power THz quantum cascade lasers Tsung-Tse Lin, Ke Wang, Li Wang, Hideki Hirayama (RIKEN) R2018-28 EMD2018-31 CPM2018-31 OPE2018-58 LQE2018-47 |
Terahertz quantum cascade lasers (THz QCLs) are theoretically analyzed based on the non-equilibrium Green’s function (NE... [more] | R2018-28 EMD2018-31 CPM2018-31 OPE2018-58 LQE2018-47 pp.57-61 |
| ED, THz | 2017-12-19 14:45 |
Miyagi | RIEC, Tohoku Univ | Simulation on the optical gain of GaN-based THz-QCLs Yun Joosun, Wang Ke, Hideki Hirayama (RIKEN) ED2017-90 |
We investigated GaN-based THz quantum cascade laser (THz-QCL) by utilizing self-consistent non-equilibrium Green’s funct... [more] | ED2017-90 pp.69-72 |
| LQE | 2017-12-15 14:10 |
Tokyo | [Invited Talk]
Recent progress of AlGaN deep-UV LEDs Hideki Hirayama, Masafumi Jo, Noritoshi Maeda (RIKEN), Yukio Kashima (Marubun) LQE2017-91 |
AlGaN deep ultraviolet light-emitting diodes (DUV-LEDs) are attracting a great deal of attention, since they have the po... [more] | LQE2017-91 pp.21-26 |
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| LQE, CPM, ED | 2017-12-01 10:55 |
Aichi | Nagoya Inst. tech. | Achievement of AlGaN deep-UV LED using photonic crystal(PhC)
-- Achievement of high-EQE(10%) AlGaN deep-UV LED using highly-reflective PhC on p-contact layer -- Yukio Kashima (Marubun), Noritoshi Maeda (RIKEN), Eriko Matsuura (Marubun), Masafumi Jo (RIKEN), Takeshi Iwai, Toshiro Morita (TOK), Mitsunori Kokubo, Takaharu Tashiro (TOSHIBA MACHINE), Ryuichiro Kamimura, Yamato Osada (ULVAC), Yuichi Kurashima, Hideki Takagi (AIST), Hideki Hirayama (RIKEN) ED2017-60 CPM2017-103 LQE2017-73 |
[more] | ED2017-60 CPM2017-103 LQE2017-73 pp.55-60 |
| LQE, CPM, ED | 2017-12-01 15:35 |
Aichi | Nagoya Inst. tech. | Thermal annealing of semipolar AlN on m-plane sapphire Masafumi Jo, Satoshi Minami, Hideki Hirayama (RIKEN) ED2017-68 CPM2017-111 LQE2017-81 |
[more] | ED2017-68 CPM2017-111 LQE2017-81 pp.91-94 |
| CPM, LQE, ED | 2016-12-13 09:30 |
Kyoto | Kyoto University | Growth and optical properties of semipolar AlGaN/AlN quantum wells on m-plane sapphire substrates Issei Oshima (RIKEN/Saitama Univ.), Masafumi Jo, Noritoshi Maeda (RIKEN), Norihiko Kamata (Saitama Univ.), Hideki Hirayama (RIKEN) ED2016-69 CPM2016-102 LQE2016-85 |
[more] | ED2016-69 CPM2016-102 LQE2016-85 pp.61-66 |
| CPM, LQE, ED | 2016-12-13 10:55 |
Kyoto | Kyoto University | Development of Highly Effective Deep-Ultraviolet Light-Emitting Diode by using Transparent p-AlGaN Contact Layer Takuya Mino (Panasonic), Hideki Hirayama (RIKEN), Takayoshi Takano, Koji Goto, Mitsuhiko Ueda, Kenji Tsubaki (Panasonic) ED2016-72 CPM2016-105 LQE2016-88 |
AlGaN-based deep-ultraviolet (DUV) light emitting diodes (LEDs) with emission wavelength of 270 - 280 nm have been attra... [more] | ED2016-72 CPM2016-105 LQE2016-88 pp.75-78 |
| ED | 2015-12-21 15:40 |
Miyagi | RIEC, Tohoku Univ | Progress of GaN-based Unexplored Wavelength Terahertz Quantum Cascade Lasers Wataru Terashima, Hideki Hirayama (RIKEN) ED2015-96 |
[more] | ED2015-96 pp.31-35 |
| ED | 2015-12-21 16:05 |
Miyagi | RIEC, Tohoku Univ | The improvement of output power characteristics of THz QCLs in 77 K Dewar condenser Tsung-Tse Lin, Wataru Terashima, Hideki Hirayama (RIKEN) ED2015-97 |
[more] | ED2015-97 pp.37-40 |
| ED, LQE, CPM | 2015-11-27 13:05 |
Osaka | Osaka City University Media Center | Recent progress of GaN-based Terahertz Quantum Cascade Lasers Wataru Terashima, Hideki Hirayama (RIKEN) ED2015-84 CPM2015-119 LQE2015-116 |
[more] | ED2015-84 CPM2015-119 LQE2015-116 pp.81-84 |
| ED, LQE, CPM | 2015-11-27 13:30 |
Osaka | Osaka City University Media Center | High-temperature growth of a-AlGaN/AlN and its optical properties Masafumi Jo, Hideki Hirayama (RIKEN) ED2015-85 CPM2015-120 LQE2015-117 |
[more] | ED2015-85 CPM2015-120 LQE2015-117 pp.85-88 |
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