Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Yusuke Igawa"'
Publikováno v:
Okayama Igakkai Zasshi (Journal of Okayama Medical Association). 132:29-33
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82963b01895e743e73d5f8a234899987
https://doi.org/10.4044/joma.132.29
https://doi.org/10.4044/joma.132.29
Publikováno v:
Physics Procedia. 76:68-72
We report the dependence of stimulated emission phenomena on randomness in a collection of regularly arranged InGaN/GaN nanocolumns. By comparing the stimulated emission behavior for two samples with different degrees of randomness, we found that loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37af8ffa8ed5205f537896f2b64dc0b6
https://doi.org/10.1016/j.phpro.2015.10.012
https://doi.org/10.1016/j.phpro.2015.10.012
Autor:
Naoki Arimitsu, Tetsuya Yamamoto, Yusuke Igawa, Kan-ichi Fujii, Tomoomi Segawa, Masahiro Suzuki, Kunihiro Fukui, Hideto Yoshida
Publikováno v:
Chemical Engineering Journal. :1-8
The process for synthesizing metallic oxide powders by the microwave denitration method was investigated using hexahydrated nickel nitrate and trihydrated copper nitrate aqueous solutions, and the electrical field and the temperature distributions in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a00ef2e52ab23d5862dd59328c7c4d4c
https://doi.org/10.1016/j.cej.2012.09.032
https://doi.org/10.1016/j.cej.2012.09.032
Autor:
T. Ozaki, Yusuke Igawa, Kouji Yamano, K. Ikeda, Ramesh Vadivelu, Shunsuke Ishizawa, Ai Yanagihara, Katsumi Kishino
Publikováno v:
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR).
Selective area growth of GaN nanocolumn arrays on Si substrates was developed. Orange-emitting nanocolumns on GaN/Al2O3 templates were optically characterized, fabricating red-color InGaN-based nanocolumn LEDs. Successful monolithic integration of fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0335ebf4284a43669e5db4a8584940c
https://doi.org/10.1109/cleopr.2013.6599923
https://doi.org/10.1109/cleopr.2013.6599923
Autor:
Ramesh Vadivelu, Katsumi Kishino, Tomi Ohtsuki, Yusuke Igawa, Hiroaki Ueda, Kazuhiro Ema, Yuta Inose
Publikováno v:
Nonlinear Optics.
We report observations of lasing phenomena in the regularly arranged InGaN/GaN nanocolumns. We show several types of laser actions, namely random lasing and distributed feedback lasing resulting from the randomness of the sample configurations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f5f4978262930e5b44278c72cec50d4
https://doi.org/10.1364/nlo.2013.nth1a.4
https://doi.org/10.1364/nlo.2013.nth1a.4
Publikováno v:
Japanese Journal of Applied Physics. 52:08JD09
We fabricated ordered GaN nanocolumns (NCs) with InGaN/GaN multiple quantum wells (MQWs) that emitted light at wavelengths of 590–600 nm by rf-plasma assisted molecular beam epitaxy. The NCs exhibited sharp emission with a full width at half maximu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6087cf2588a014ec6bbdfaf763740ab
https://doi.org/10.7567/jjap.52.08jd09
https://doi.org/10.7567/jjap.52.08jd09
Publikováno v:
Japanese Journal of Applied Physics. 52:08JE18
GaN nanocolumns exhibiting high light-extraction property provide a platform for high-performance nano-devices. To improve the performance of nanocolumn LEDs, uniform arrays of InGaN-based multi quantum well (MQW) nanocolumns were fabricated. We repo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bb100fe2f1371f76db6a1ee1551ccf2
https://doi.org/10.7567/jjap.52.08je18
https://doi.org/10.7567/jjap.52.08je18
Publikováno v:
Physics Procedia. :42-46
We have investigated the photon-generated carrier dynamics of InGaN/GaN nanocolumns whose emission wavelength is in the orange to red region, focusing on the changes in the photoluminescence spectra, emission efficiency and relaxation curves. We have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9def4ea212492c537674fce94de8178b