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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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Committee Date Time Place Paper Title / Authors Abstract Paper #
LQE, OPE, EMD, R, CPM 2016-08-25
14:25
Hokkaido   [Invited Talk] Recent progress in ultraviolet AlGaN laser diodes
Harumasa Yoshida, Hiroyuki Taketomi, Yuta Aoki, Yasufumi Takagi, Atsushi Sugiyama, Masakazu Kuwabara, Yoji Yamashita, Satoru Okawara, Junya Maeda (Hamamatsu Photonics) R2016-26 EMD2016-30 CPM2016-39 OPE2016-60 LQE2016-35
We will talk about the recent progress in ultraviolet (UV) laser diodes (LDs). The watt-class peak output power has been... [more] R2016-26 EMD2016-30 CPM2016-39 OPE2016-60 LQE2016-35
pp.35-40
EMD, LQE, OPE, CPM, R 2014-08-22
09:35
Hokkaido Otaru Economy Center [Invited Talk] Current status and future prospect of ultraviolet laser diodes
Harumasa Yoshida, Yuta Aoki, Masakazu Kuwabara, Yoji Yamashita, Kousuke Torii, Atsushi Sugiyama, Takenori Morita (Hamamatsu Photonics) R2014-37 EMD2014-42 CPM2014-57 OPE2014-67 LQE2014-41
We will talk about the current status and the future prospect of ultraviolet laser diodes. The electrically driven laser... [more] R2014-37 EMD2014-42 CPM2014-57 OPE2014-67 LQE2014-41
pp.71-75
LQE 2010-12-17
17:15
Tokyo Kikai-Shinko-Kaikan Bldg. AlGaN semiconductor lasers for short ultraviolet region
Harumasa Yoshida, Masakazu Kuwabara, Yoji Yamashita, Kazuya Uchiyama, Hirofumi Kan (Hamamatsu Photonics) LQE2010-128
We have demonstrated the room-temperature operations of AlGaN based laser diodes under pulsed-current mode. AlGaN laser ... [more] LQE2010-128
pp.63-67
ED, LQE, CPM 2009-11-19
15:45
Tokushima Univ. of Tokushima (Josanjima Campus, Kogyo-Kaikan) Ultraviolet AlGaN based multiple-quantum-well laser diodes
Harumasa Yoshida, Masakazu Kuwabara, Yoji Yamashita, Yasufumi Takagi, Kazuya Uchiyama, Hirofumi Kan (Hamamatsu Photonics) ED2009-141 CPM2009-115 LQE2009-120
We have demonstrated the room-temperature operations of AlGaN based multi-quantum-well (MQW) laser diodes under pulsed-c... [more] ED2009-141 CPM2009-115 LQE2009-120
pp.61-64
ED, LQE, CPM 2009-11-19
16:10
Tokushima Univ. of Tokushima (Josanjima Campus, Kogyo-Kaikan) Reduction in operating voltage of UV laser diode
Tomoki Ichikawa, Kenichiro Takeda, Yuji Ogiso, Kengo Nagata, Motoaki Iwaya, Satoshi Kamiyama, Hiroshi Amano, Isamu Akasaki (Meijo Univ.), Harumasa Yoshida, Masakazu Kuwabara, Yoji Yamashita, Hirofumi Kan (Hamamatsu Photonics K.K.) ED2009-142 CPM2009-116 LQE2009-121
Annealing condition for n-type electrode in AlGaN-based UV LD was investigated. High temperature annealing is found to b... [more] ED2009-142 CPM2009-116 LQE2009-121
pp.65-69
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