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Kuroda Noritaka , Tsugawa Koichi , Yokoi Hiroyuki
… The criteria reveal that in sapphire a variety of specific oblique-incidence reflection spectra arise from negative refraction and counterposition in the infrared region of multimode polar optical phonons. …
J Phys Soc Jpn 81(11), 114706-114706-10, 2012-11-15
The Physical Society of Japan
武笠 和則 , 今村 勝徳 , 安田 正隆 他
電子情報通信学会技術研究報告 : 信学技報 112(261), 33-36, 2012-10-25
Kaneta Akio , Kim Yoon-Seok , Funato Mitsuru , Kawakami Yoichi , Enya Yohei , Kyono Takashi , Ueno Masaki , Nakamura Takao
… Carrier/exciton diffusion outside the probe aperture of 150 nm is demonstrated by a multimode SNOM technique. …
Applied Physics Express 5(10), 102104-102104-3, 2012-10-25
The Japan Society of Applied Physics
飯久保 忠久 , 長瀬 亮
電子情報通信学会技術研究報告 : 信学技報 112(253), 13-18, 2012-10-19
Ahmed Moustafa , Yamda Minoru
… The present analyses are based on a multimode rate equation model that takes into account both symmetric and asymmetric suppressions of the cross-modal gain. … The obtained results show that regardless of the fact that the non-modulated laser oscillates nearly in single-mode or in two-mode hopping, the modulated laser oscillates in single mode when the signal is continuous, and converts into multimode when the signal is pulsing. …
Journal of Physics D: Applied Physics 45(40), 405102, 2012-10-00
IR
山林 由明 , 阿部 正裕 , 須田 俊央 他
電子情報通信学会技術研究報告 : 信学技報 112(209), 57-62, 2012-09-20
電子情報通信学会技術研究報告 : 信学技報 112(208), 59-64, 2012-09-20
電子情報通信学会技術研究報告 : 信学技報 112(210), 13-18, 2012-09-20
… The study is based on intensive integrations of the multimode rate equation model of semiconductor lasers over wide ranges of the modulation frequency and depth. … The study is applied to both cases of single-mode and multimode oscillations of the non-modulated laser. … The modulated laser is found to oscillate in a single mode under weak modulation where the modulated signal is continuous, whereas the pulsing signals are associated with multimode oscillation. …
European Physical Journal D 66(9), 246, 2012-09-00
IR CrossRef
Bolotov Leonid , Tada Tetsuya , Poborchii Vladimir , Fukuda Koichi , Kanayama Toshihiko
… Spatial distribution of photocurrent in Si stripes of 50--1000 nm in width were investigated as a function of optical excitation wavelength by multimode scanning probe microscopy (MSPM). … An effective spatial resolution of {\sim}10 nm was deduced from the photocurrent measurements with multimode SPM in the constant-force mode. …
Jpn J Appl Phys 51(8), 088005-088005-2, 2012-08-25
Ogusu Kazuhiko
… We numerically investigate all-optical switching in multimode interference (MMI) couplers made of self-focusing Kerr media using the beam propagation method. … The field evolution in the nonlinear multimode waveguide constituting the TMI coupler is also presented for deeper understanding of the operation principle. …
Jpn J Appl Phys 51(8), 082503-082503-5, 2012-08-25
Takayanagi Shinji , Yanagitani Takahiko , Matsukawa Mami
Wideband ultrasonic transducers are required for acoustic imaging and nondestructive evaluation. In this study, we have fabricated transducer consisting of c-axis tilted ZnO/c-axis normal ZnO multilay …
Jpn J Appl Phys 51(7), 07GC08-07GC08-4, 2012-07-25
Kuwatsuka Haruhiko , Hasama Toshifumi , Ishikawa Hiroshi
… The stabilization of multimode oscillation was experimentally confirmed by applying phase modulation to the grating coupled laser diode. …
Jpn J Appl Phys 51(6), 062701-062701-6, 2012-06-25
OH Taegeun , LEE Sanghoon
… In this paper, we present a multimode-multilevel BTC (MBTC) technique that improves performance while maintaining simplicity. …
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 95(5), 867-875, 2012-05-01
J-STAGE CrossRef References (17)
Taue Shuji , Matsumoto Yoshiki , Fukano Hideki , Tsuruta Kenji
… We investigated a fiber-based multimode interference phenomenon in the wavelength domain by using a white light source and an optical spectrum analyzer. … In addition, an interference-signal shift was observed by changing the medium surrounding an multimode interference (MMI) structure. … Finally, a demonstration of the optical fiber refractometer with a multimode interference structure was given by refractive-index measurements of ethanol/water solutions. …
Jpn J Appl Phys 51(4), 04DG14-04DG14-4, 2012-04-25
Kim Woo-Ju , Lee Hak-Soon , Lee Sang-Shin
… A compact silicon nitride grating coupler with flexible bandwidth was demonstrated taking advantage of a basic grating integrated with a serially connected multistage multimode interference (MMI) filter. …
Applied Physics Express 5(4), 042201-042201-3, 2012-04-25
The Japan Society of Applied Physics References (17)
Tsuji Takeshi , Johansen Tor Arne , Bent Ole Ruud , Ikeda Tatsunori , Matsuoka Toshifumi
… We used multimode analysis with a genetic algorithm inversion to estimate the S-wave velocity due to the potential existence of a low-velocity layer beneath the glacier ice and the observation of higher modes in the dispersion curves. …
GEOPHYSICS 77(3), EN17-EN27, 2012-04-00
萩行 正憲 , 高野 恵介 , 森川 治 他
オプトロニクス 31(4), 185-190, 2012-04-00
Ohtsuji Taichi , Kobori Tomoyoshi , Igura Hiroyuki , Ikekawa Masao
Proceedings of the IEICE General Conference 2012年_通信(1), 611, 2012-03-06
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Matsumoto Yoshiki , Fukano Hideki , Taue Shuji
Proceedings of the IEICE General Conference 2012年_通信(2), 540, 2012-03-06