Observation of very narrow fine-structure splittings in self-assembled quantum dots by photocurrent spectroscopy

Hiroyuki Takagi, Toshihiro Nakaoka, Katsuyuki Watanabe, Naoto Kumagai, Satoshi Iwamoto, Yasuhiko Arakawa

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 40(6) 2192-2194, Apr, 2008
Dynamics of excitons in an InAs quantum dot at a telecom-band

A. Suzuki, T. Kodera, T. Miyazawa, H. Takagi, N. Kumagai, K. Watanabe, T. Nakaoka, Y. Arakawa

2008 Int. Nano-Optoelectronics Workshop, iNOW 2008 in Cooperation With Int. Global-COE Summer School (Photonics Integration-Core Electronics: PICE) and 31st Int. Symposium on Optical Communications, 231-232, 2008
Electrical tuning of the g factor of single self-assembled quantum dots

T. Nakaoka, S. Tarucha, Y. Arakawa

PHYSICAL REVIEW B, 76(4) 041301(R)-1-041301(R)-4, Jul, 2007
Coulomb blockade in a self-assembled GaN quantum dot

T. Nakaoka, S. Kako, Y. Arakawa, S. Tarucha

APPLIED PHYSICS LETTERS, 90(16) 162109-1-162109-3, Apr, 2007
Direct observation of acoustic phonon mediated relaxation between coupled exciton states in a single quantum dot molecule

T. Nakaoka, E. C. Clark, H. J. Krenner, M. Sabathil, M. Bichler, Y. Arakawa, G. Abstreiter, J. J. Finley

PHYSICAL REVIEW B, 74(12) 121305(R)-1-121305(R)-4, Sep, 2006
Cavity resonant excitation of InGaAs quantum dots in photonic crystal nanocavities

Masahiro Nomura, Satoshi Iwamoto, Toshihiro Nakaoka, Satomi Ishida, Yasuhiko Arakawa

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 45(8A) 6091-6095, Aug, 2006
Quantum confined Stark effect in single self-assembled GaN/AlN quantum dots

T Nakaoka, S Kako, Y Arakawa

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 32(1-2) 148-151, May, 2006
Magneto-optical single dot spectroscopy of GaSb/GaAs type II quantum dots

Tomohiko Sato, Toshihiko Nakaoka, Makoto Kudo, Yasuhiko Arakawa

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 32(1-2) 152-154, May, 2006
Optically Probing Spin and Charge Interactions in a Tunable Artificial Molecule

H. J. Krenner, E. C. Clark, T. Nakaoka, M. Bichler, C. Scheurer, G. Abstreiter, J. J. Finley

Phys. Rev. Lett., 97 076403-1-076403-4, Apr 17, 2006
Localized excitation of InGaAs quantum dots by utilizing a photonic crystal nanocavity

M Nomura, S Iwamoto, T Nakaoka, S Ishida, Y Arakawa

APPLIED PHYSICS LETTERS, 88(14) 141108-1-141108-3, Apr, 2006
Development of electrically driven single-quantum-dot device at optical fiber bands

T Miyazawa, J Tatebayashi, S Hirose, T Nakaoka, S Ishida, S Iwamoto, K Takemoto, T Usuki, N Yokoyama, M Takatsu, Y Arakawa

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 45(4B) 3621-3624, Apr, 2006
Unconventional quantum-confined Stark effect in a single GaN quantum dot

T Nakaoka, S Kako, Y Arakawa

PHYSICAL REVIEW B, 73(12) 121305(R)-1-121305(R)-4, Mar, 2006
Shell structures in self-assembled InAs quantum dots probed by lateral electron tunneling structures

M Jung, T Machida, K Hirakawa, S Komiyama, T Nakaoka, S Ishida, Y Arakawa

APPLIED PHYSICS LETTERS, 87(20) 203109-1-203109-3, Nov, 2005
Controlling the Spontaneous Emission Rate of Single Quantum Dots in a 2D Photonic Crystal

D. Englund, D. Fattal, E. Waks, G. Solomon, B. Zhang, T. Nakaoka, Y. Arakawa, Y. Yamamoto, J. Vuckovic

Phys. Rev. Lett., 95 013904-1-013904-4, Jul 1, 2005
Controlling the spontaneous emission rate of single quantum dots in a two-dimensional photonic crystal

D Englund, D Fattal, E Waks, G Solomon, B Zhang, T Nakaoka, Y Arakawa, Y Yamamoto, J Vuckovic

PHYSICAL REVIEW LETTERS, 95(1) 013904-1-013904-4, Jul, 2005
Tuning of g-factor in self-assembled In(Ga)As quantum dots through strain engineering

T Nakaoka, T Saito, J Tatebayashi, S Hirose, T Usuki, N Yokoyama, Y Arakawa

PHYSICAL REVIEW B, 71(20) 205301-1-205301-7, May, 2005
Observation of 1.55 mu m light emission from InAs quantum dots in photonic crystal microcavity

S Iwamoto, J Tatebayashi, T Fukuda, T Nakaoka, S Ishida, Y Arakawa

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 44(4B) 2579-2583, Apr, 2005
Room temperature continuous wave lasing in InAs quantum-dot microdisks with air cladding

T Ide, T Baba, J Tatebayashi, S Iwamoto, T Nakaoka, Y Arakawa

OPTICS EXPRESS, 13(5) 1615-1620, Mar, 2005
Strain distribution and electronic states in stacked InAs/GaAs quantum dots with dot spacing 0-6 nm

T Saito, T Nakaoka, T Kakitsuka, Y Yoshikuni, Y Arakawa

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 26(1-4) 217-221, Feb, 2005
Electroluminescence from a single quantum dot at telecommunication wavelength

T. Miyazawa, J. Tatebayashi, T. Nakaoka, S. Ishida, S. Iwamoto, M. Takatsu, Y. Arakawa, S. Hirose, K. Takemoto, T. Usuki, N. Yokoyama

Quantum Electronics and Laser Science Conference (QELS), 1 323-325, 2005
Microdisk lasers - Quantum-dot lasing and bistability

T. Baba, T. Ide, S. Ishii, A. Nakagawa, J. Tatebayashi, S. Iwamoto, T. Nakaoka, Y. Arakawa

Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 5738 295-302, 2005 Peer-reviewed
1.55-μm light emission from InAs QDs embedded in a high-Q photonic crystal microcavity

Satoshi Iwamoto, Jun Tatebayashi, Tatsuya Fukuda, T. Nakaoka, S. Ishida, Yasuhiko Arakawa

Proceedings of SPIE - The International Society for Optical Engineering, 5733 406-413, 2005 Peer-reviewed
InAsSb quantum dots grown on GaAs substrates by molecular beam epitaxy

Makoto Kudo, Toshihiro Nakaoka, Satoshi Iwamoto, Yasuhiko Arakawa

Japanese Journal of Applied Physics, Part 2: Letters, 44(1-7) L45-L47, 2005 Peer-reviewed
Size, shape, and strain dependence of the g factor in self-assembled In(Ga)As quantum dots

T Nakaoka, T Saito, J Tatebayashi, Y Arakawa

PHYSICAL REVIEW B, 70(23) 235337-1-235337-8, Dec, 2004
Lasing characteristics of InAs quantum-dot microdisk from 3 K to room temperature

T Ide, T Baba, J Tatebayashi, S Iwamoto, T Nakaoka, Y Arakawa

APPLIED PHYSICS LETTERS, 85(8) 1326-1328, Aug, 2004
Carrier relaxation in closely stacked InAs quantum dots

T Nakaoka, J Tatebayashi, Y Arakawa, T Saito

JOURNAL OF APPLIED PHYSICS, 96(1) 150-154, Jul, 2004
Transition energy control via strain in single quantum dots embedded in micromachined air-bridge

T Nakaoka, T Kakitsuka, T Saito, Y Arakawa

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 43(4B) 2069-2072, Apr, 2004
Enhanced optical properties of high-density (> 10(11)/cm(2)) InAs/AlAs quantum dots by hydrogen passivation

SK Park, J Tatebayashi, T Nakaoka, T Sato, YJ Park, Y Arakawa

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 43(4B) 2118-2121, Apr, 2004
Selective excitation of self-assembled quantum dots by using shaped pulse

Y Toda, T Nakaoka, R Morita, M Yamashita, T Inoue, Y Arakawa

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 21(2-4) 180-183, Mar, 2004
Long-wavelength luminescence from GaSb quantum dots grown on GaAs substrates

M Kudo, T Mishima, S Iwamoto, T Nakaoka, Y Arakawa

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 21(2-4) 275-278, Mar, 2004
Spectroscopy on single columns of vertically aligned InAs quantum dots

T Nakaoka, J Tatebayashi, Y Arakawa

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 21(2-4) 409-413, Mar, 2004
Manipulation of electronic states in single quantum dots by micromachined air-bridge

T Nakaoka, T Kakitsuka, T Saito, Y Arakawa

APPLIED PHYSICS LETTERS, 84(8) 1392-1394, Feb, 2004
Self-assembled InAsSb quantum dots grown on GaAs substrates by molecular-beam epitaxy

N Kudo, T Nakaoka, S Iwamoto, Y Arakawa

2004 International Conference on Indium Phosphide and Related Materials, Conference Proceedings, 44 687-690, 2004
Strain-induced modifications of the electronic states of InGaAs quantum dots embedded in bowed airbridge structures

T Nakaoka, T Kakitsuka, T Saito, S Kako, S Ishida, M Nishioka, Y Yoshikuni, Y Arakawa

JOURNAL OF APPLIED PHYSICS, 94(10) 6812-6817, Nov, 2003
Effect of strain variation on photoluminescence from InGaAs quantum dots in air-bridge structures

T Nakaoka, T Kakitsuka, T Saito, S Kako, S Ishida, M Nishioka, Y Yoshikuni, Y Arakawa

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 238(2) 289-292, Jul, 2003
Optical characterization of strong carrier-phonon interactions in single quantum dots

Y. Toda, T. Inoue, T. Nakaoka, S. Ishida, Y. Arakawa

Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest, 2 448, 2003 Peer-reviewed
Numerical analysis of transition energy shift in InAs/GaAs quantum dots induced by strain-reducing layers

T Kakitsuka, T Saito, T Nakaoka, Y Arakawa, H Ebe, M Sugawara, Y Yoshikuni

2ND INTERNATIONAL CONFERENCE ON SEMICONDUCTOR QUANTUM DOTS, (4) 1157-1160, 2003
Optical anisotropy of self-assembled InGaAs quantum dots embedded in wall-shaped and air-bridge structures

T Nakaoka, S Kako, S Ishida, M Nishioka, Y Arakawa

APPLIED PHYSICS LETTERS, 81(21) 3954-3956, Nov, 2002
Trifurcated crystallization and inhomogeneity in GeSe2 glass

T Nakaoka, Y Wang, K Murase, K Inoue

PHYSICAL REVIEW B, 63(22) 224206-1-224206-5, Jun, 2001
Trifurcated crystallization and inhomogeneity in (formula presented) glass

T. Nakaoka, Y. Wang, K. Murase, K. Inoue

Physical Review B - Condensed Matter and Materials Physics, 63(22), 2001
Stiffness transition and connectivity in amorphous chalcogenide semiconductors

Y Wang, T Nakaoka, M Nakamura, O Matsuda, K Murase

PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, 87 228-229, 2001 Peer-reviewed
Reversible photoinduced structural changes in GeSe2 glass at low-temperature

T Nakaoka, Y Wang, O Matsuda, K Inoue, K Murase

PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, 87 113-114, 2001 Peer-reviewed
Correlation of structural relaxation at glass transition with network connectivity in GexSe1-x glasses

T Nakaoka, Y Wang, O Matsuda, K Inoue, K Murase

PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, 87 1687-1688, 2001 Peer-reviewed
Resonant Raman scattering in crystalline GeSe2

T Nakaoka, Y Wang, K Murase, O Matsuda, K Inoue

PHYSICAL REVIEW B, 61(23) 15569-15572, Jun, 2000
Relaxation process of band-edge exciton in layered crystalline GeSe2

T Nakaoka, Y Wang, O Matsuda, K Inoue, K Murase

JOURNAL OF LUMINESCENCE, 87-9 617-619, May, 2000
Effect of thermal annealing on dynamics of photoluminescence in a-GeSe2 films

Y Wang, T Komamine, T Nakaoka, O Matsuda, K Inoue, K Murase

JOURNAL OF NON-CRYSTALLINE SOLIDS, 266 904-907, May, 2000

Misc.

Research on RF HySIC device for space information and communication energy technology

薮田直人, 後藤優花, 小渕大輔, 内海淳, 中岡俊裕, 吉田賢史, 西川健二郎, 正光義則, 川崎繁男

電子情報通信学会大会講演論文集(CD-ROM), 2020, 2020
Terahertz time-domain spectroscopy of GaAs epitaxial layers treated with the use of fast atom bombardment

大椋祐斗, 竹内日出雄, 中山正昭, 小野田稜太, 中岡俊裕, 内海淳, 川崎繁男, 小山政俊

光物性研究会論文集, 30th, 2019
時間領域テラヘルツ分光を用いた高速原子ボンバードメント処理によるGaAsエピタキシャル層表面の評価

大椋祐斗, 竹内日出雄, 中山正昭, 小野田稜太, 中岡俊裕, 内海淳, 川崎繁男, 小山政俊

日本物理学会講演概要集(CD-ROM), 74(2), 2019
混成半導体集積回路HySICによるRFエナジーハーベスタの試作

古瀬結貴, 清田春信, 宮地晃平, 中岡俊裕, 岸川諒子, 林大介, 川崎繁男

電子情報通信学会大会講演論文集(CD-ROM), 2017, 2017
異種半導体混成整流器モデル化のための高周波非線形計測

岸川諒子, 岸川諒子, 清田春信, 林大介, 吉田賢史, 西川健二郎, 古瀬結貴, 中岡俊裕, 堀部雅弘, 宮地晃平, 川崎繁男, 川崎繁男

電子情報通信学会大会講演論文集(CD-ROM), 2017, 2017

Books and Other Publications

Thermal relaxation and criticality of the stiffness transition”, in Phase Transitions and Self-Organization in Electronic and Molecular Materials

Nakaoka Toshihiro (Role: Joint author, pp 85-100)

Springer, Boston, MA, 2001 (ISBN: 9780306471131)

Presentations

176

Si/Geヘテロ構造の二次元平面展開BIB型Ge検出器の光応答性能の評価

髙間大輝, 鈴木仁研, 和田武彦, 金田英宏, 大藪進喜, 中岡俊裕

可視赤外線観測装置技術ワークショップ, Nov 10, 2025
MIR high-dispersion spectrometer using a CdZnTe immersion grating

Shunsuke Baba, Takao Nakagawa, Hideo Matsuhara, Umi Enokidani, Yasuhiro Hirahara, Yuan Li, Biao Zhao, Chenhao Zhao, Hiroshi, Sasago, Ryoichi Koga, Hidehiro Kaneda, Takuya Hosobata, Noboru Ebizuka, Yutaka Yamagata, Toshihiro Nakaoka, Toyoaki Suzuki, Takehiko Wada, Hideko Nomura, Shota Notsu, Yuji Ikeda, Hanae Inami, Koji Kawaba

Nov 10, 2025
RF-Tunable Multilevel Resistance Modulation in a Monoclinic Ag₂Te-Based Device for Neuromorphic Applications

Jun Yamasawa, Yuta Tsuchihashi, Toshihiro Nakaoka

The 44th Electronic Materials Symposium (EMS-44) [We1-43 ], Oct 15, 2025
Exploring RF-Controlled Resistance Modulation in Ag2Te Films for Neuromorphic Electronics

Jun Yamasawa, Yuta Tsuchihashi, Toshihiro Nakaoka

The 15th International Conference on Flexible and Printed Electronics [S2-O1], Sep 17, 2025
Si/Ge ヘテロ構造の二次元平面展開 BIB 型 Ge 検出器の光応答性能の評価

高間大輝, 鈴木仁研, 和田武彦, 金田英宏, 中岡俊裕, 大藪進喜

日本天文学会2025年秋季年会 [V249a], Sep 10, 2025

Professional Memberships

Research Projects

接合型Ge検出器の2次元構造展開で切り拓く超高感度な中間-遠赤外線センサーの実現

科学研究費助成事業, 日本学術振興会, Apr, 2023 - Mar, 2028

鈴木仁研, 中岡俊裕, 金田英宏, 和田武彦
接合型Ge検出器の2次元構造展開で切り拓く超高感度な中間-遠赤外線センサーの実現

科学研究費助成事業, 日本学術振興会, Apr, 2023 - Mar, 2028

鈴木仁研, 中岡俊裕, 金田英宏, 和田武彦
Search for snow-lines with high-resolution spectroscopic observations in the mid-infrared

Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2023 - Mar, 2028
国産モノリシック赤外線画像センサ「IR-SOIPIX」実現にむけて

科学研究費助成事業, 日本学術振興会, Jun, 2025 - Mar, 2027

和田武彦, 中岡俊裕, 鈴木仁研
Fabrication and evaluation of unexplored metastable phases using anomalous diffusion

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2025

Industrial Property Rights

特許第5022753号(P5022753) 発光・受光素子の冷却装置
特許第4375661号半導体装置

荒川泰彦, 中岡俊裕, 斎藤敏夫, 硴塚孝明
特許第4117778号半導体光素子

Social Activities

応用物理学会プログラム編集委員(13.6)中分類代表

Others

Apr 1, 2018 - Mar 31, 2020
応用物理学会プログラム編集委員(13.7)

Others

Apr 1, 2017 - Mar 31, 2018
電子情報通信学会マイクロ波研究会専門委員

Others

Apr 1, 2017 - Mar 31, 2018
Subcommittee of 2016 Compound Semiconductor Week (CSW2016)

Others

Apr 1, 2015 - Mar 31, 2017
2016年国際固体素子・材料コンファレンス論文委員

Others

Sep 26, 2016 - Sep 29, 2016

Other

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