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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 47  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
LQE, CPM, ED 2020-11-27
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
ED, THz [detail] 2019-12-23
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
ED, THz [detail] 2019-12-23
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
CPM, LQE, ED 2019-11-22
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
ED, LQE, CPM 2018-11-29
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
ED, LQE, CPM 2018-11-30
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
EMD, LQE, OPE, CPM, R 2018-08-24
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
ED, THz 2017-12-19
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
LQE 2017-12-15
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
LQE, CPM, ED 2017-12-01
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
LQE, CPM, ED 2017-12-01
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
CPM, LQE, ED 2016-12-13
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
CPM, LQE, ED 2016-12-13
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
ED 2015-12-21
Miyagi RIEC, Tohoku Univ Progress of GaN-based Unexplored Wavelength Terahertz Quantum Cascade Lasers
Wataru Terashima, Hideki Hirayama (RIKEN) ED2015-96
 [more] ED2015-96
ED 2015-12-21
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
ED, LQE, CPM 2015-11-27
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
ED, LQE, CPM 2015-11-27
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
ED, LQE, CPM 2015-11-27
Osaka Osaka City University Media Center Growth and optical properties of semi-polar AlGaN/AlN layers grown on m-plane sapphire substrates
Issei Oshima (Saitama Univ./RIKEN), Masafumi Jo, Noritoshi Maeda (RIKEN), Norihiko Kamata (Saitama Univ.), Hideki Hirayama (RIKEN) ED2015-86 CPM2015-121 LQE2015-118
 [more] ED2015-86 CPM2015-121 LQE2015-118
ED 2014-12-23
Miyagi   [Invited Talk] Realization of GaN-based Terahertz Quantum Cascade Lasers using Pure Three-Level Laser Structure
Wataru Terashima, Hideki Hirayama (RIKEN) ED2014-110
III-Nitride semiconductors having huge longitudinal optical phonon energies are promising as materials to solve a proble... [more] ED2014-110
ED 2014-12-23
Miyagi   Modulation barrier AlGaAs/GaAs quantum cascade laser operating at 3.7 THz
Tsung-Tse Lin, Hideki Hirayama (RIKEN) ED2014-111
Recently one more design freedom of change the barriers height in THz QCLs is expected to improve device performance and... [more] ED2014-111
 Results 1 - 20 of 47  /  [Next]  
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