論文

• Xiaodong Gu, Toshikazu Shimada, Ayumi Fuchida, Akihiro Matsutani, Akihiro Imamura, Fumio Koyama. Ultra-compact beam-steering device based on Bragg reflector waveguide amplifier with number of resolution points over 100, Electron. Lett., vol. 48, no. 6, pp. 336-337, Mar. 2012.
• Xiaodong Gu, Toshikazu Shimada, Ayumi Fuchida, Akihiro Matsutani, Akihiro Imamura, Fumio Koyama. Electro-Thermal Beam Steering Using Bragg Reflector Waveguide Amplifier, Jpn. J. Appl. Phys., vol. 51, no. 2012, pp. 20206-1-3, Jan. 2012.
• Xiaodong Gu, Toshikazu Shimada, Ayumi Fuchida, Akihiro Matsutani, Akihiro Imamura, Fumio Koyama. Beam steering in GalnAs/GaAs slow-light Bragg reflector waveguide amplifier, Appl. Phys. Lett., vol. 99, no. 21, pp. 211107-1-3, Nov. 2011.
• Xiaodong Gu, Akihiro Imamura, Fumio Koyama. Wavelength Trimming of Vertical-Cavity Surface-Emitting Lasers with High-Contrast Subwavelength Grating, Jpn. J. Appl. Phys., vol. 50, 100207-1~3, Oct. 2011.
• Akihiro Imamura, Akihiro Matsutani, Fumio Koyama. Multiplexing of Multi-Wavelength 1060-nm-Band GaInAs/GaAs Vertical Cavity Surface Emitting Laser Array Using Tapered Hollow Waveguide, Appl. Phys. Exp., vol. 4, 082106-1-3, July 2011.
• Akihiro Imamura, Fumio Koyama. Modeling and experiment on tapered hollow waveguide multiplexer for multiwavelength VCSEL array, IEICE Electronics Express, vol. 5, no. 12, pp. 451-456, June 2008.
• Akihiro Imamura, Naoto Kitabayashi, Fumio Koyama. Beam steering and tilt coupling in tunable hollow waveguide, IEICE Electronics Express, vol. 5, no. 11, pp. .405-410, June 2008.

国際会議発表 (査読有り)

• Hayato Sano, Jyunichi Kashino, Adair Gerke, Akihiro Imamura, Fumio Koyama, Connie Chang-Hasnain. Transverse Mode Control of VCSELs with High Contrast Sub-Wavelength Grating Functioning as Angular Filter, Conference on Lasers and Electro-Optics 2012, CLEO 2012, CW3N.5, May 2012.
• Xiaodong Gu, Toshikazu Shimada, Ayumi Fuchida, Akihiro Matsutani, Akihiro Imamura, Fumio Koyama. Thermal and Electrical Beam Steering on a GaInAs/GaAs Slow-light Bragg Waveguide Amplifier, Conference on Lasers and Electro-Optics 2012, CLEO 2012, JW2A.90, May 2012.
• Jyunichi Kashino, Akihiro Imamura, Fumio Koyama. TRANSVERSE MODE CONTROL OF VCSELS USING HIGHLY ANGULAR DEPENDENT HIGH CONTRAST SUB-WAVELENGTH GRATING, 17th Microoptics Conference, MOC'11, H-24, Nov. 2011.
• Xiaodong Gu, Toshikazu Shimada, Ayumi Fuchida, Akihiro Imamura, Akihiro Matsutani, Fumio Koyama. EXPERIMENTAL DEMONSTRATION OF BEAM-STEERING BASED ON SLOW-LIGHT WAVEGUIDE AMPLIFIER, 17th Microoptics Conference, MOC'11, C-3, Oct. 2011.
• Akihiro Imamura, Weijian Yang, James Ferrara, Yuuki Hasidume, Xiaodong Gu, Fumio Koyama, Connie J. Chang-Hasnain. Spatial Mode Demultiplexer Based on High Contrast Sub-Wavelength Grating Hollow Waveguide, The 16th Opto-Electronics And Communications Conference, OECC2011, 6E1_4, July 2011.
• Xiaodong Gu, Akihiro Imamura, Fumio Koyama. Grating Trimming of VCSEL with High Contrast sub-wavelength Grating, 16th MicroOptics Conference, MOC2010, TB5, Oct. 2010.
• Akihiro Imamura, Akihiro Matsutani, Fumio Koyama. Multi-wavelength 1060nm-band VCSEL Array with Tapered Hollow Waveguide Multiplexer, 2010 IEEE International Semiconductor Laser Conference, ISLC Kyoto, MB3, pp. 7-8, Sept. 2010.
• Akihiro Imamura, Akihiro Matsutani, Fumio Koyama. Tapered hollow waveguide multiplexer for multi-wavelegth VCSEL array, 2010 International Nano-Optoelectronics Workshop, iNOW 2010, P11, pp. 170-171, Aug. 2010.
• Akihiro Imamura, Vadim Karagodsky, Bala Pesala, Fumio Koyama, Connie J. Chang-Hasnain. Multi-Wavelength VCSEL Array based on High Contrast Sub-Wavelength Grating, The 22nd Annual Meeting of the IEEE Photonics Society, ThX5, pp. 811-812, Oct. 2009.
• Akihiro Imamura, Akihiro Matsutani, Fumio Koyama. Tapered hollow waveguide multiplexer for multi-wavelength VCSEL array, 2009 International Nano-Optoelectronics Workshop, iNOW2009, P7, Aug. 2009.
• FUMIO KOYAMA, Padullaparthi Babu Dayal, Akihiro Imamura, Takahiro Sakaguchi, Akihiro Matsutani. Multiple-Wavelength GaInAs/GaAs VCSELs with Grading a Spacer Layer for Short Reach WDM Applications, IPRM2009, 2009 International Conference on Indium Phosphide and Related Materials, Tu B2-6, pp. 182-184, May 2009.
• Akihiro Imamura, Koichi Hasebe, Akihiro Matsutani, Fumio Koyama. Tapered hollow waveguide multiplexer for multi-wavelength VCSEL array, Photonics West 2009, IPRM2009, 7229-15, Jan. 2009.
• Akihiro Imamura, Fumio Koyama. Beam steering and coupling in tunable hollow waveguide with narrow air core, 12th Optoelectronics and Communications Conference/16th International Conference on Integrated Optics and Optical Fiber Communication, OECC/IOOC2007, 13E2-3, pp. 694-695, Apr. 2008.
• Akihiro Imamura, Fumio Koyama. Beam steering and coupling in tunable hollow waveguide with narrow air core, 12th Optoelectronics and Communications Conference/16th International Conference on Integrated Optics and Optical Fiber CommunicationOECC/IOOC2007, 13E2-3, pp. 694-695, July 2007.
• Naoto Kitabayashi, Akihiro Imamura, Akihiro Matsutani, Fumio Koyama. Tapered Hollow Waveguide Multiplexer for Multi-wavelength VCSEL array, 12th Optoelectronics and Communications Conference/16th International Conference on Integrated Optics and Optical Fiber Communication, OECC/IOOC2007, 12D4-2, pp. 410-411, July 2007.

国内会議発表 (査読有り)

• Akihiro Imamura, Xiaodong Gu, Vadim Karagodsky, Bala Pesala, Connie J. Chang-Hasnain, Fumio Koyama. Design of Multi-Wavelength VCSEL Array based on High Contrast Sub-Wavelength Grating, G-COE International Symposium, P-4, Mar. 2010.
• 今村明博, 小山二三夫. 微小コア中空光導波路の入出力結合の検討, 第54回応用物理学会春 季講演会, No. 27p-SG-4, Mar. 2007.

国内会議発表 (査読なし・不明)

• 今村 明博, 小山 二三夫. 高屈折率差サブ波長格子の角度依存性, 2012年春季第59回応用物理学関係連合講演会, 16p-F4-16, Mar. 2012.
• Hayato Sano, Jyunichi Kashino, A Gerke, Akihiro Imamura, Fumio Koyama, C.J. Chang-Hasnain. Transverse Mode Control of VCSELs with High Contrast Sub-Wavelength Grating Functioning as Angular Filter, The 59th Spring Meeting of Japan Society of Applied Physics and Related Societies, 16p-F3-3, Mar. 2012.
• 樫野 純一, 今村 明博, 佐野 勇人, 小山 二三夫. 3次元構造面発光レーザの高屈折率差サブ波長格子を用いた横モード制御, 2012年春季第59回応用物理学関係連合講演会, 16p-F3-2, Mar. 2012.
• 貞光 雅徳, 今村 明博, 小山 二三夫. 空間モードフィルタのための高屈折率差サブ波長回折格子の評価, 2012年春季第59回応用物理学関係連合講演会, 16p-F4-17, Mar. 2012.
• Akihiro Imamura, Weijian Yang, Xiaodong Gu, Fumio Koyama, Connie J. Chang-Hasnain. Transverse Mode Demultiplexing Based on HCG Hollow Waveguide, The 2011 IEICE Society Conference, C-3-17, Sept. 2011.
• 今村 明博, Weijian Yang, James Ferrara, 橋爪 佑樹, GU XIAODONG, 小山 二三夫, Connie J. Chang-Hasnain. 高屈折率差サブ波長格子中空導波路を用いた空間モード分波器, 春季第58回応用物理学関係連合講演会, 24p-KA-16, Mar. 2011.
• Xiaodong Gu, Akihiro Imamura, Fumio Koyama. Proposal of athermal HCG-VCSEL using Benzocyclobutene polymer, The 58th Spring Meeting of Japan Society of Applied Physics and Related Societies, 26a-P5-5, Mar. 2011.
• 今村明博, 松谷晃宏, 小山二三夫. 多波長面発光レーザアレイと集積可能な小型光合波器の検討, 第71 回応用物理学会学術講演会, 16p-H-6, Sept. 2010.
• 顧暁冬, 今村明博, 小山二三夫. 屈折率差サブ波長格子を用いた面発光レーザの波長トリミング, 57回応用物理学関係連合講演会, 19a-E-3, Mar. 2010.
• 今村明博, 顧暁冬, Vadim Karagodsky, Bala Pesala, Connie J. Chang-Hasnain, 小山二三夫. 高屈折率差サブ波長格子を用いた多波長面発光レーザアレイの波長域拡大, 第57回応用物理学関係連合講演会, 19a-E-2, Mar. 2010.
• 今村明博, Vadim Karagodsky, Bala Pesala, Connie J. Chang-Hasnain, 小山二三夫. 高屈折率差サブ波長回折格子を用いた多波長面発光レーザの波長域拡大の検討, 2009年電子情報通信学会通信ソサエティ大会, C-4-20, Sept. 2009.
• 今村明博, Vadim Karagodsky, Bala Pesala, Connie Chang-Hasnain, 小山二三夫. 高屈折率差サブ波長格子を用いた多波長面発光レーザアレイの検討, 第70回応用物理学会学術講演会, 11a-S-10, Sept. 2009.
• 今村 明博, 長谷部 浩一, 松谷 晃宏, 小山 二三夫. 多波長面発光レーザアレイと集積可能な小型光合波器の検討, 電子情報通信学会2009総合大会, C-3-69, Mar. 2009.
• BABU DAYAL, 今村 明博, 坂口 孝浩, 松谷 晃宏, 小山 二三夫. 波長制御層によるGaInAs/GaAs多波長面発光レーザアレイの製作, 第56回応用物理学関係連合講演会, 1p-G-13, p. 1199, Mar. 2009.
• 今村明博, 北林直人, 小山二三夫. 多波長面発光レーザアレイと集積可能な小型光合波器の検討, 第69回応用物理学会学術講演会, 2p-P3-16, Sept. 2008.
• 今村明博, 北林直人, 小山二三夫. 可変中空光導波路を用いた光回路, 2008年度電子情報通信学会通信ソサイエティ大会, C-3-22, Sept. 2008.
• 今村明博, 小山二三夫. 変微小中空光導波路からの放射特性, 電子情報通信学会2008総合大会, C-3-93, Mar. 2008.
• 今村明博, 小山二三夫. 可変微小中空コア光導波路からの放射線特性, 電子情報通信学会技術研究報告, pp. 1-4, Feb. 2008.

その他の論文・著書など

• 今村 明博, 小山 二三夫. OECC2011 報告 ‐アクティブデバイス・モジュール関連‐, 2011年電子情報通信学会LQE研究会, LQE2011-50, Aug. 2011.
• 今村 明博, Weijian YANG, James Ferarra, 橋爪 佑樹, 顧 暁冬, 小山 二三夫, Connie J. CHANG-HASNAIN. 高屈折率差サブ波長格子中空光導波路を用いた空間モード分波器, 2011年電子情報通信学会LQE研究会, LQE2011-41, Aug. 2011.
• 小山二三夫, 桐田健, Hamed Dalir, 今村明博, 坂口孝浩. 多モード中空光導波路を用いた3次元層間光接続と多モード合分波回路, 第1回集積光デバイスと応用技術研究会(電子情報通信学会), pp. 25-30, May 2011.

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