渡辺慶規 (Yoshinori Watanabe) - マイポータル

Precise control of dry etching for nanometer scale air-hole arrays in two-dimensional GaAs/AlGaAs photonic crystal slabs

Naoki Ikeda, Yoshimasa Sugimoto, Yoshinori Watanabe, Nobuhiko Ozaki, Yoshiaki Takata, Yu Tanaka, Kuon Inoue, Kiyoshi Asakawa

OPTICS COMMUNICATIONS 275(1) 257-267 2007年7月

Topology optimization of waveguide bends with wide, flat bandwidth in air-bridge-type photonic crystal slabs

Yoshinori Watanabe, Naoki Ikeda, Yoshimasa Sugimoto, Yoshiaki Takata, Yoshinori Kitagawa, Akio Mizutani, Nobuhiko Ozaki, Kiyoshi Asakawa

JOURNAL OF APPLIED PHYSICS 101(11) 113108(1-6) 2007年6月

Studies on key nano-fabrication processes for GaAs-based air-bridge-type two-dimensional photonic-crystal slab waveguides

Naoki Ikeda, Yoshimasa Sugimoto, Yu Tanaka, Kuon Inoue, Hisaya Oda, Yoshinori Watanabe, Kiyoshi Asakawa

SEMICONDUCTOR SCIENCE AND TECHNOLOGY 22(2) 149-157 2007年2月

High transmission recovery of slow light in a photonic crystal waveguide using a hetero group-velocity waveguide

Opt. Express 15 7974-798 2007年

High transmission recovery of slow light in a photonic crystal waveguide using a hetero group-velocity waveguide

Opt. Express 15 7974-798 2007年

Broadband waveguide intersection with lowcrosstalk in two-dimensional photonic crystal circuits by using topology optimization

Yoshinori Watanabe, Yoshimasa Sugimoto, Naoki Ikeda, Nobuhiko Ozaki, Akio Mizutani, Yoshiaki Takata, Yoshinori Kitagawa, Kiyoshi Asakawa

OPTICS EXPRESS 14(20) 9502-9507 2006年10月

Photonic crystal and quantum dot technologies for all-optical switch and logic device

Kiyoshi Asakawa, Yoshimasa Sugimoto, Yoshinori Watanabe, Nobuhiko Ozaki, Akio Mizutani, Yoshiaki Takata, Yoshinori Kitagawa, Hiroshi Ishikawa, Naoki Ikeda, Koichi Awazu …

NEW JOURNAL OF PHYSICS 8 208(1-26) 2006年9月

Topology optimised photonic crystal waveguide intersections with high-transmittance and low crosstalk

N. Ikeda, Y. Sugimoto, Y. Watanabe, N. Ozaki, A. Mizutani, Y. Takata, J. S. Jensen, O. Sigmund, P. I. Borel, M. Kristensen …

ELECTRONICS LETTERS 42(18) 1031-1033 2006年8月

The effect of higher-order dispersion on slow light propagation in photonic crystal waveguides

RJP Engelen, Y Sugimoto, Y Watanabe, JP Korterik, N Ikeda, NF van Hulst, K Asakawa, L Kuipers

OPTICS EXPRESS 14(4) 1658-1672 2006年2月

Fabrication and characterization of photonic crystal-based symmetric Mach-Zehnder (PC-SMZ) structures based on GaAs membrane slab waveguides

Y Sugimoto, Y Tanaka, N Ikeda, H Nakamura, K Kanamoto, S Ohkouchi, Y Watanabe, K Inoue, K Asakawa

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 23(7) 1308-1314 2005年7月

Design of photonic crystal directional coupler with high extinction ratio and small coupling length

N Yamamoto, Y Watanabe, K Komori

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44(4B) 2575-2578 2005年4月

Guided Modes of a Width-Reduced Photonic Crystal Slab Line-Defect Waveguide with Asymmetric Cladding

TANAKA Yu, TANAKA Yu, SUGIMOTO Yoshimasa, IKEDA Naoki, NAKAMURA Hitoshi, WATANABE Yoshinori, ASAKAWA Kiyoshi, ASAKAWA Kiyoshi, INOUE Kuon

IEEE J. Lightwave Tech. 23(9) 2749-2755 2005年

Guided Modes of a Width-Reduced Photonic Crystal Slab Line-Defect Waveguide with Asymmetric Cladding

IEEE J. Lightwave Tech. 23(9) 2749-2755 2005年

Ultra-fast photonic crystal/quantum dot all-optical switch for future photonic networks

H Nakamura, Y Sugimoto, K Kanamoto, N Ikeda, Y Tanaka, Y Nakamura, S Ohkouchi, Y Watanabe, K Inoue, H Ishikawa …

OPTICS EXPRESS 12(26) 6606-6614 2004年12月

Ultra-Small GaAs-Photonic-Crystal-Slab-Waveguide-Based Near-Infrared Components”: Fabrication, Guided-Mode Identification, and Estimation of Low-Loss and Broad-Band-Width in Straight-Waveguides, 60º-Bends and Y-Splitters

Jpn. J. Appl. Phys. 43(9A) 6112-6124 2004年9月

Ultra-small GaAs-photonic-crystal-slab-waveguide-based near-infrared components: Fabrication, guided-mode identification, and estimation of low-loss and broad-band-width in straight-waveguides, 60 degrees-bends and Y-splitter's

K Inoue, Y Sugimoto, N Ikeda, Y Tanaka, K Asakawa, T Maruyama, K Miyashita, K Ishida, Y Watanabe

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 43(9A) 6112-6124 2004年9月

Numerical analysis of waveguides in three-dimensional photonic crystal with finite thickness

Y Watanabe, N Yamamoto, K Komori

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 43(4B) 2015-2018 2004年4月

Novel ring waveguide device in a 2D photonic crystal slab - Transmittance simulated by finit-difference time-domain analysis

K Furuya, N Yamamoto, Y Watanabe, K Komori

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 43(4B) 1995-2001 2004年4月

Two dimensional semiconductor-based photonic crystal slab waveguides for ultra-fast optical signal processing devices

Y Sugimoto, Y Tanaka, N Ikeda, K Kanamoto, Y Nakamura, S Ohkouchi, H Nakamura, K Inoue, H Sasaki, Y Watanabe …

IEICE TRANSACTIONS ON ELECTRONICS E87C(3) 316-327 2004年3月

Simulation of group velocity-dependent phase shift induced by refractive-index-change in air-bridge-type AlGaAs two-dimensional photonic crystal slab waveguide

WATANABE Y, YAMAMOTO N, KOMORI K, NAKAMURA H, SUGIMOTO Y, TANAKA Y, IKEDA N, ASAKAWA K, INOUE K

J. Opt. Soc. Am. B 21(10) 1833-1838 2004年

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