Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Kota Okazaki"'
Autor:
Koji Yamada, Tai Tsuchizawa, Yasuhiko Ishikawa, Kazumi Wada, Kota Okazaki, Tatsurou Hiraki, Rai Kou, Kotarou Takeda, Hidetaka Nishi, Tsuyoshi Yamamoto, Hiroshi Fukuda
Publikováno v:
ECS Transactions. 64:749-759
Recently, data communication systems are now facing an explosive traffic increase. In order to cope with such an explosive traffic increase, densely-integrated photonic circuits, which would provide compact, high-functionality, energy-efficient and c
Autor:
Tetsuya Shimogaki, Hiroshi Ikenoue, Kota Okazaki, Tatsuo Okada, Norihiro Tetsuyama, Mitsuhiro Higashihata, Koshi Fusazaki, Yasuaki Mizokami, Daisuke Nakamura, Kota Yamasaki
Publikováno v:
Applied Physics A. 117:269-273
We have been establishing the technique of fabricating spherical semiconductor microcrystals with suitable diameters for whispering gallery mode (WGM) lasing. Concretely, semiconductor microspheres were synthesized by ablating various semiconductor-s
Publikováno v:
Journal of Laser Micro/Nanoengineering. 8:206-209
We have succeeded in controlling growth density of the ZnO nanowires by introduction of a ZnO buffer layer. Low-density hexagonal cone-shape ZnO cores are formed on the buffer layer, and vertically-aligned ZnO nanowires are grown on the cores. The de
Autor:
Kota Okazaki, Mitsuhiro Higashihata, Daisuke Nakamura, Hiroshi Ikenoue, Tatsuo Okada, Tetsuya Simogaki
Publikováno v:
Journal of Laser Micro/Nanoengineering. 8:296-299
We have succeeded in synthesizing ZnO nano/microspheres by a simple laser ablation method in the air and demonstrated whispering-gallery-mode (WGM) lasing from the ZnO sphere excited by a pulsed-ultraviolet laser beam. The spheres with diameters of u
Autor:
Kota Okazaki, Daisuke Nakamura, Hiroshi Ikenoue, Norihiro Tetsuyama, T. Ofuji, Tetsuya Shimogaki, Mitsuhiro Higashihata, Tatsuo Okada, Tanemasa Asano
Publikováno v:
Advanced Materials Research. 699:383-386
We report on the effect of high repetition pulsed laser annealing with a KrF excimer laser on the optical properties of phosphorus ion-implanted ZnO nanorods. The recovery levels of phosphorus ion-implanted ZnO nanorods have been measured by photolum
Autor:
Hiroshi Ikenoue, Tatsuo Okada, Mitsuhiro Higashihata, Tetsuya Shimogaki, Norihiro Tetsuyama, Tanemasa Asano, T. Ofuji, Kota Okazaki, Daisuke Nakamura
Publikováno v:
Applied Physics A. 114:625-629
The effect of high repetition rate pulsed laser annealing with a KrF excimer laser on the optical properties of phosphorus-ion-implanted zinc oxide nanorods has been investigated. The recovery levels of phosphorus-ion-implanted zinc oxide nanorods ha
Publikováno v:
Journal of Laser Micro/Nanoengineering. 7:264-268
Lasing characteristics and an alignment method of ZnO micro / nanocrystals were investigated for an application to ultraviolet (UV) laser diode (LD). A single ZnO microsheet synthesized by carbothermal chemical vapor deposition method was examined by
Autor:
Kota Okazaki, Akihiko Takahashi, Kouichi Murakami, Tatsuo Okada, Daisuke Nakamura, Hiroyuki Niino, Shuichi Torii, Tetsuya Makimura
Publikováno v:
Journal of Laser Micro/Nanoengineering. 6:235-238
*1 Institute of Applied Physics, University of Tsukuba, 1-1-1 Ten'nodai, Tsukuba, Ibaraki 305-8573, bk200820379@s.bk.tsukuba.ac.jp *2 Graduate School of Information Sciences and Electrical Engineering, Kyushu University, 744 Motooka, Nishi, Fukuoka 8
Autor:
Mitsuhiro Higashihata, Daisuke Nakamura, Tetsuya Shimogaki, K. Kubo, Tatsuo Okada, Kota Okazaki
Publikováno v:
Advanced Materials Letters. 2:354-357
The lasing characteristics of ZnO nanosheets were investigated for an application to ultraviolet laser diode. ZnO nanosheets were synthesized on a silicon substrate by a CVD method, and then those ZnO nanosheets were examined by a photoluminescence m
Publikováno v:
The Review of Laser Engineering. 39:188-192