Misc - OZAKI Nobuhiko

Development of a Broadband Superluminescent Diode Based on Self‐Assembled Quantum Dots for Optical Coherence Tomography Applications

尾崎 信彦 （Part： Lead author,　Corresponding author )

レーザー研究   47 ( 10 ) 578 - 582   2019.10  [Invited]

若手研究者の挑戦 第15回 自己組織化InAs量子ドットを用いた近赤外広帯域光源―高分解能光コヒーレンストモグラフィーへの応用―

尾崎 信彦

Optronics   ( 422 ) 101‐106   2017.02

自己組織化量子ドットを用いた医療OCT用近赤外広帯域光源の開発

尾崎 信彦, 竹内 晃一, 保田 拓磨, 池田 直樹, 渡辺 英一郎, 大里 啓孝, 津谷 大樹, 杉本 喜正

NanotechJapan Bulletin（ナノテクノロジーEXPRESS 第14回）   6 ( 6 ) 1 - 7   2013.12

Tunable Laser with Emission-Wavelength-Controlled InAs Quantum dots for 1.1-µm Waveband Swept-Source Optical Coherence Tomography Applications

Toshiya Tsuji, Nobuhiko Ozaki, Sho Yamauchi, Katsuya Onoue, Eiichiro Watanabe, Hirotaka Ohsato, Naoki Ikeda, Yoshimasa Sugimoto, David T. D. Childs, and Richard A. Hogg, （Part： Corresponding author )

Extended Abstracts of the 2020 International Conference on Solid State Devices and Materials (SSDM2020)     315 - 316   2020.09  [Refereed]

Low-group-velocity and low-dispersion 2D-GaAs-photonic crystal waveguide for highly efficient terahertz wave generation

中濱照之, 尾崎信彦, 小田久哉, 池田直樹, 杉本喜正

電子情報通信学会技術研究報告   117 ( 405(EMT2017 75-127) ) 5‐8   2018.01

Development of Ultra-small Multi-wavelength Near-infrared Light Source Based on Photonic Crystal and Quantum Dots

尾崎信彦, 小田久哉

村田学術振興財団年報   ( 31 ) 244‐250   2017.12

Multi-wavelength near-infrared light source using heterojunction 2D GaAs photonic crystal waveguide with InAs quantum dots

内田翔, 尾崎信彦, 小田久哉, 池田直樹, 杉本喜正

電子情報通信学会技術研究報告   116 ( 388(OPE2016 116-158) ) 131‐134   2017.01

Highly efficient terahertz wave generation using a low‐group‐velocity and low‐dispersion 2D‐GaAs‐photonic crystal waveguide

中濱照之, 尾崎信彦, 小田久哉, 池田直樹, 杉本喜正

光物性研究会論文集   28th   99‐102   2017

Lasing of InAs quantum-dot embedded photonic crystal waveguide lasers by using two-photon pumping at room temperature

小田久哉, 山中明生, 尾崎信彦, 池田直樹, 杉本喜正

電子情報通信学会技術研究報告   116 ( 191(R2016 19-41) ) 41‐44   2016.08

三種類の炭素材料における水中でのレーザー照射による水素発生とナノ粒子生成

山本翔太, 尾崎信彦, 秋元郁子

光物性研究会論文集   27th   91‐94   2016

InAs量子ドットを含む直列ヘテロ接合型GaAs二次元フォトニック結晶導波路からのパーセル効果による多波長増強光

内田翔, 尾崎信彦, 小田久哉, 池田直樹, 杉本喜正

光物性研究会論文集   27th   211‐214   2016

Broadband Gain Superluminescent Diode Based on Self-assembled InAs Quantum Dots with Segmented Contacts

N. Ozaki, T. Yasuda, S. Ohkouchi, E. Watanabe, N. Ikeda, Y. Sugimoto, R.A. Hogg （Part： Lead author,　Corresponding author )

Extended Abstracts of the 2015 International Conference on Solid State Devices and Materials ( Japan Society of Applied Physics )    234 - 235   2015.09

DOI

Broadband near-infrared light source based on self-assembled InAs quantum dots for optical coherence tomography

尾崎信彦, 保田拓磨, 柴田弘, 大河内俊介, 渡辺英一郎, 大里啓孝, 池田直樹, 杉本喜正, HOGG Richard

電子情報通信学会技術研究報告   115 ( 46(LQE2015 1-19) ) 25 - 28   2015.05

異なるバンドギャップエネルギーを持つInAs‐QDを用いた中間バンド型GaAs太陽電池の特性比較

池田理彩, 林佑真, 尾崎信彦, 大里啓孝, 渡辺英一郎, 池田直樹, 杉本喜正

光物性研究会論文集   26th   419 - 422   2015

Optical Coherence Tomography Imaging by Using a Superluminescent Diode Based on InAs/GaAs Quantum Dots

H. Shibata, T. Yasuda, S. Ohkouchi, N. Ikeda, H. Ohsato, E. Watanabe, Y. Sugimoto, K. Furuki, K. Miyaji, R.A. Hogg and N. Ozaki （Part： Last author,　Corresponding author )

Extended Abstracts of the 2014 International Conference on Solid State Devices and Materials ( Japan Society of Applied Physics )    488 - 489   2014.09

DOI

Broadband light source based on self-assembled InAs quantum dots with controlled emission wavelengths for optical coherence tomography

N. Ozaki, T. Yasuda, H. Shibata, S. Ohkouchi, H. Ohsato, E. Watanabe, N. Ikeda, Y. Sugimoto, and R.A. Hogg （Part： Lead author,　Corresponding author )

Extended Abstracts of the 33rd Electronic Materials Symposium (EMS-33)     241 - 242   2014.07

Influence of interface formed between quantum dots and TiO2 surface on the conversion efficiency of quantum-dot-sensitized solar cell

Akira Ieyama, Nobuhiko Ozaki, Minako Kato, Takafumi Ofuchi, and Naoaki Fukuda

Extended Abstracts of the 33rd Electronic Materials Symposium (EMS-33)     257-258   2014.07

Control of optical responses in InAs quantum dots by using the Purcell effect in a photonic crystal waveguide

Hayato Yoneda, Takayuki Umakoshi, Nobuhiko Ozaki, Hisaya Oda, Naoki Ikeda, Yoshimasa Sugimoto, and Kiyoshi Asakawa

Laser-From Science to Applications     99-103   2014.04

量子ドット増感型太陽電池における光学特性の量子ドット/酸化チタン粒子界面構造依存性

家山昂, 尾崎信彦, 大渕隆文, 福田直晃, 加藤美奈子, 滝谷俊夫

光物性研究会論文集   25th   201 - 204   2014

近赤外多波長InAs量子ドットSLD光源を用いたSD‐OCTによるバイオサンプル断層画像取得

柴田弘, 保田拓磨, 尾崎信彦, 大河内俊介, 池田直樹, 大里啓孝, 渡辺英一郎, 杉本喜正, 古城健司, 宮地邦男, HOGG R.A

光物性研究会論文集   25th   409 - 412   2014

Selective-area growth of self-assembled semiconductor quantum dots with controlled emission wavelengths for broadband light source of bio-imaging

尾崎信彦

日本板硝子材料工学助成会成果報告書   32   47 - 51   2014

Broadband near-infrared superluminescent diode based on stacked multi-color InAs/GaAs quantum dots

N. Ozaki, T. Yasuda, S. Ohkouchi, E. Watanabe, N. Ikeda, Y. Sugimoto, R.A. Hogg （Part： Lead author,　Corresponding author )

Extended Abstracts of the 2013 International Conference on Solid State Devices and Materials ( Japan Society of Applied Physics )    994 - 995   2013.09

DOI

Growth of stacked In-flushed-QD layers emitting at 1um with Gaussian-like broadband spectrum

Nobuhiko Ozaki, Yuji Hino, Shunsuke Ohkouchi, Naoki Ikeda, Yoshimasa Sugimoto （Part： Lead author,　Corresponding author )

Extended abstracts of the 40th International Symposium on Compound Semiconductors (ISCS2013), MoPC-01-01     1 - 2   2013.05

Generation of upconversion light by two-photon absorption in GaAs-based photonic-crystal waveguide

小田久哉, 山中明生, 尾崎信彦, 池田直樹, 杉本喜正

電気学会電磁界理論研究会資料   EMT-13 ( 1-17.20-59 ) 207 - 210   2013.01

フォトニック結晶導波路モードの低群速度波長でのパーセル効果を利用した量子ドット内キャリア緩和促進

米田隼人, 内田翔, 尾崎信彦, 小田久哉, 池田直樹, 杉本喜正, 浅川潔

光物性研究会論文集   24th   447 - 450   2013

広帯域光源性能評価のための光干渉計(OCT)の立ち上げ

柴田弘, 西剛史, 保田拓磨, 尾崎信彦

光物性研究会論文集   24th   407 - 410   2013

Growth of InAs-QDs emitting at 1.MU.m with a broadband spectrum via In-flush method for bio/medical imaging

日野雄司, 尾崎信彦, 大河内俊介, 池田直樹, 杉本喜正

電子情報通信学会技術研究報告   112 ( 327(ED2012 65-92) ) 113 - 116   2012.11

レーザー照射による備長炭粉末を用いた水からの水素発生

前田宏輔, 尾崎信彦, 秋元郁子

光物性研究会論文集   23rd   377 - 380   2012

フォトニックバンドエンジニアリングによるフォトニック結晶導波路内量子ドットの光学特性制御

米田隼人, 尾崎信彦, 小田久哉, 池田直樹, 杉本喜正, 浅川潔

光物性研究会論文集   23rd   313 - 316   2012

1ミクロン帯発光広帯域光源を目指したIn‐flush法によるInAs量子ドットの作製と光学評価

日野雄司, 尾崎信彦, 大河内俊介, 池田直樹, 杉本喜正

光物性研究会論文集   23rd   337 - 340   2012

Selective-area growth of 4-color InAs-QD ensembles for broadband light source

K. Takeuchi, N. Ozaki, S. Ohkouchi, N. Ikeda, Y. Sugimoto, K. Asakawa, R. A. Hogg （Part： Corresponding author )

Extended Abstracts of the 2011 International Conference on Solid State Devices and Materials ( Japan Society of Applied Physics )    278 - 279   2011.09

DOI

半導体微細素子への応用を目指した,領域および波長選択量子ドットのモノリシック成長

尾崎信彦, 浅川潔

村田学術振興財団年報   ( 24 ) 118 - 127   2010.12

Photonic crystal all-optical switches

K. Asakawa, Y. Sugimoto, N. Ikeda, Y. Watanabe, N. Ozaki, Y. Takata, Y. Kitagawa, S. Ohkouchi, S. Nakamura, A. Watanabe, X. Wang

Optical Switches: Materials and Design ( Elsevier Ltd )    241 - 275   2010.10  [Refereed]

　View Summary

Ultra-small, ultra-low energy and ultra-fast SMZ-type all-optical analog switch, PC-SMZ and digital optical flip-flop, PC-FF, have been investigated by using GaAs-based photonic crystal (PC) waveguides and InAs-based quantum dots (QDs). For this purpose, a topology optimization design method for wide/flat-band PC waveguides and selective-area-growth of QDs using a metal-mask MBE method have been developed. This chapter reviews successful operation of an ultra-low energy (~. 100. fJ) PC-SMZ at an ultra-fast (~. ps) speed with a high repetition-rate up to 40 Gb/s. It also reviews successful computational verification of optical bi-stability in the PC-FF with a high repetition-rate up to 40 Gb/s. © 2010 Woodhead Publishing Limited. All rights reserved.

DOI

溶液レーザーアブレーション法によるキナクリドンキノンのナノ粒子作製

大畠正裕, 尾崎信彦, 秋元郁子

光物性研究会論文集   21st   426 - 429   2010

スペクトル形状制御可能な広帯域光源を目指した多色量子ドット成長

竹内晃一, 尾崎信彦, 日野雄司, 池田直樹, 杉本喜正, 浅川潔, HOGG Richard A

光物性研究会論文集   21st   422 - 425   2010

Wavelength Dependences of Optical Phase and Amplitude Modulations in Semiconductor Waveguide

本間正徳, SALLERAS Ferran, NGUYEN Tuan Anh, 上野芳康, 尾崎信彦, 浅川潔

電子情報通信学会技術研究報告   109 ( 49(LQE2009 1-18) ) 33 - 37   2009.05

Optical flip-flop based on coupled ultra-small Mach-Zehnder all-optical switches

S. Nakamura, A. Watanabe, X. Wang, N. Ikeda, Y. Sugimoto, N. Ozaki, Y. Watanabe, K. Asakawa

2008 CONFERENCE ON OPTICAL FIBER COMMUNICATION/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-8 ( OPTICAL SOC AMERICA )    1951 - 1953   2008

　View Summary

The configuration of coupled ultra-small Mach-Zehnder all-optical switches is quite attractive for high-speed optical flip-flops. Its bistability is experimentally demonstrated with an emulated setup. High-speed capability corresponding to 10 and 40 Gb/s is confirmed with simulation based on rate equation analysis. (C) 2008 Optical Society of America.

Design and fabrication of nano-photonics-based all-optical flip-flop switch

K. Asakawa, S. Nakamura, A. Watanabe, N. Ikeda, Y. Watanabe, N. Ozaki, S. Ohkouchi, Y. Sugimoto

2008 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING ( IEEE )    36 - +   2008

　View Summary

A photonic crystal- and quantum dot-based all-optical flip-flop switch (PC-FF) capable of synchronizing with high frequency clock was fabricated for a future optical digital signal processing device with high-speed capability of 40 Gb/s and beyond. Nanostructures constructing the PC-FF exhibit excellent characteristics and suggest successful optical FF demonstration.

Acceleration of the Refractive Index Response in Nonlinear Photonic Crystal/Quantum Dot Waveguides via the Purcell Effect

Ferran Salleras, Nobuhiko Ozaki, Yoshinori Kitagawa, Yoshiaki Takata, Kiyoshi Asakawa, Naoki Ikeda, Yoshimasa Sugimoto, Masanori Honma, Yoshiyasu Ueno

2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9 ( IEEE )    1676 - +   2008

　View Summary

A sixfold acceleration of the phase shift recovery time in photonic crystal / quantum dot waveguides having a Purcell enhanced spontaneous emission peak resonant to the excited state of the quantum dots is experimentally demonstrated. (C)2008 Optical Society of America

DOI

Optical flip-flop device composed of photonic crystal waveguides and quantum dots

Y. Sugimoto, Y. Watanabe, N. Ozaki, A. Mizutani, Y. Takata, Y. Kitagawa, N. Ikeda, S. Ohkouchi, S. Nakamura, A. Watanabe, and K. Asakawa

The 13th Microoptics Conference (MOC'07)     L5   2007.10  [Refereed]

Criterion for Removing a Delayed Peak from the Ultrafast Nonlinear Response of Photonic Crystal / Quantum Dot Waveguides

Ferran Salleras, Masanori Honma, Jun Sakaguchi, Yoshiyasu Ueno, Nobuhiko Ozaki, Yoshinori Kitagawa, Kiyoshi Asakawa, Naoki Ikeda, Yoshimasa Sugimoto

Nonlinear Photonics     NTuC6   2007.09

DOI

In situ Metal Mask for Selective Area Growth of Thin Epitaxial Layers

Shunsuke Ohkouchi, Nobuhiko Ozaki, Yoshiaki Takata, Yoshinori Kitagawa, Yusui Nakamura, Naoki Ikeda, Yoshimasa Sugimoto, Kiyoshi Asakawa

Extended Abstracts of the 2007 International Conference on Solid State Devices and Materials ( Japan Society of Applied Physics )    128 - 129   2007.09

DOI

Optical-Nonlinearity-Induced Phase Shift via Selective Area Grown InAs-QDs in a Photonic Crystal Waveguide

Yoshinori Kitagawa, Nobuhiko Ozaki, Yoshiaki Takata, Naoki Ikeda, Shunsuke Ohkouchi, Yoshimasa Sugimoto, Kiyoshi Asakawa

Extended Abstracts of the 2007 International Conference on Solid State Devices and Materials ( Japan Society of Applied Physics )    114 - 115   2007

DOI

Magnetic properties of p-Zn1-xMnxTe:N as investigated through the magnetotransport measurement

K. -T. Nam, S. Kuroda, T. Kumekawa, N. Ozaki, and K. Takita

Extended abstracts of the 9th Symp. on Phys. and Appl. Spin-Related Phenomena in Semiconductors (PASPS-9)     146-148   2003.06

Magnetic and transport properties of Zn1-xCrxTe

N. Ozaki, I. Okabayashi, K. -T. Nam, S. Kuroda, and K. Takita （Part： Lead author )

Extended abstracts of the 9th Symp. on Phys. and Appl. Spin-Related Phenomena in Semiconductors (PASPS-9)     143 - 145   2003

Magneto-transport and magnetic properties of nitrogen doped p-Zn1-xMnxTe

K. -T. Nam, S. Kuroda, N. Ozaki, and K. Takita

Extended abstracts of the 8th Symp. on Phys. and Appl. Spin-Related Phenomena in Semiconductors (PASPS-8)     73-76   2002.12

Research of optical characteristic of hydrogen introduction silicon hyper fine crystallite of which the structure was controlled. ( the Ministry of Education S ).

大野裕, 尾崎信彦, 竹田精治

サブナノ格子物質におけるプロチウム新機能 平成10年度 No.10148102     236 - 239   1999