Study on fabricating entangled photon sources which are highly tolerant to the structural fluctuation

• Project/Area Number: 21681020
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Microdevices/Nanodevices
• Research Institution: Hokkaido University
• Principal Investigator: KUMANO Hidekazu 北海道大学, 電子科学研究所, 准教授 (70292042)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥24,960,000 (Direct Cost: ¥19,200,000、Indirect Cost: ¥5,760,000); Fiscal Year 2011: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000); Fiscal Year 2010: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000); Fiscal Year 2009: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
• Keywords: 量子ディスク / 量子リング / もつれ合い光子源 / 形状揺らぎ / 微細構造分裂 / 量子ドット / 量子もつれ / 量子暗号 / インジウムひ素 / ガリウムひ素 / インジウムフラッシュ / 形状揺らぎ許容度 / 高精度膜厚制御 / InAsリング

Research Abstract

Suppression of the fine structure splitting(FSS) was carried out by controlling anisotropy of nanostructures with GaAs embedding and forming disk-like nanostructure by Indium-flash method. It is found that after optimizing conditions for each process and fabricating quantum disk structure, the FSS has successfully reduced from 100μeV down to 30μeV. Furthermore, the FSS has reduced as low as 5μeV by introducing quantum ring structure.

Research Products

• [Journal Article] Characterization of two-photon polarization mixed states generated from entangled-classical hybrid photon source (2011)
  • Author(s): H. Kumano, K. Matsuda, S. Ekuni, H. Sasakura, and I. Suemune
  • Journal Title: Opt. Express Volume: 19 Pages: 14249-14259
  • Peer Reviewed
• [Journal Article] Enhanced photon generation in a Nb/n-InGaAs/p-InP superconductor/semiconductor-diode light emitting device (2011)
  • Author(s): H. Sasakura, S. Kuramitsu, Y. Hayashi, K. Tanaka, T. Akazaki, E. Hanamura, R. Inoue, H. Takayanagi, Y. Asano, C. Hermannstadter, H. Kumano, and I. Suemune
  • Journal Title: Phys. Rev. Lett Volume: 107
  • Peer Reviewed
• [Journal Article] Strongly suppressed multi-photon generation from a single quantum dot in a metal-embedded structure (2011)
  • Author(s): H. Nakajima, S. Ekuni, H. Kumano, Y. Idutsu, S. Miyamura, D. Kato, S. Ida, H. Sasakura, and I. Suemune
  • Journal Title: phys. stat. sol(c) Volume: 8 Pages: 337-339
  • NAID: 120002958492
  • Peer Reviewed
• [Journal Article] 量子情報通信のための単一光子・量子もつれ光子対光源 (2011)
  • Author(s): 末宗幾夫、熊野英和、笹倉弘理
  • Journal Title: 光学 Volume: 40巻9号 Pages: 472-477
  • NAID: 10029622924
  • Peer Reviewed
• [Journal Article] Strongly Suppressed Multi-photon Generation from a Single Quantum Dot in Metal-embedded Structure (2011)
  • Author(s): H.Nakajima, S.Ekuni, H.Kumano, Y.Idutsu, S.Miyamura, D.Kato, S.Ida, H.Sasakura, I.Suemune
  • Journal Title: Phys.Stat.Solidi Volume: C8 Issue: 2 Pages: 337-339
  • DOI: 10.1002/pssc.201000519
  • NAID: 120002958492
  • Peer Reviewed
• [Journal Article] Characterization of Two-photon Polarization Mixed States Generated from Entangled-classical Hybrid Photon Source (2011)
  • Author(s): H.Kumano,K.Matsuda,S.Ekuni, H.Sasakura, I.Suemune
  • Journal Title: Opt.Express Volume: 19 Issue: 15 Pages: 14249-14259
  • DOI: 10.1364/oe.19.014249
  • Peer Reviewed
• [Journal Article] Quantum-dot-based photon emission and media conversion for quantum information applications (2010)
  • Author(s): H. Kumano, H. Nakajima, S. Ekuni, Y. Idutsu, H. Sasakura, and I. Suemune
  • Journal Title: Adv. Math. Phys
  • Peer Reviewed
• [Journal Article] First-order photon interference of a single photon from a single quantum dot (2010)
  • Author(s): S. Ekuni, H. Nakajima, H. Sasakura, I. Suemune, and H. Kumano
  • Journal Title: Physica Volume: E42 Pages: 2536-2539
  • Peer Reviewed
• [Journal Article] A Cooper-Pair Light-Emitting Diode : Temperature Dependence of Both Quantum Efficiency and Radiative Recombination Lifetime (2010)
  • Author(s): I. Suemune, Y. Hayashi, S. Kuramitsu, K. Tanaka, T. Akazaki, H. Sasakura, R. Inoue, H. Takayanagi, Y. Asano, E. Hanamura, S. Odashima, and H. Kumano
  • Journal Title: Appl. Phys. Express Volume: 3
  • NAID: 10027014788
  • Peer Reviewed
• [Journal Article] Quantum-dot-based photon emission and media conversion for quantum information applications (2010)
  • Author(s): H.Kumano
  • Journal Title: Adv.Math.Phys. Volume: 2010
  • Peer Reviewed
• [Journal Article] First-order photon interference of a single photon from a single quantum dot (2010)
  • Author(s): S.Ekuni
  • Journal Title: Physica E Volume: 42 Pages: 2536-2539
  • Peer Reviewed
• [Journal Article] Position controlled nanowires for infrared single photon emission (2010)
  • Author(s): N.Dorenbos
  • Journal Title: Appl.Phys.Lett. Volume: 97
  • Peer Reviewed
• [Journal Article] Spin-flip quenching in trion state mediated by optical phonons in a single quantum dot (2009)
  • Author(s): H. Kumano, S. Ekuni, H. Kobayashi, H. Sasakura, I. Suemune, S. Adachi, and S. Muto
  • Journal Title: phys. stat. sol(b) Volume: 246 Pages: 775-778
  • Peer Reviewed
• [Journal Article] Spin-flip quenching in trion state mediated by optical phonons in a single quantum dot (2009)
  • Author(s): H.Kumano, S.Ekuni, H.Kobayashi, H.Sasakura, I.Suemune, S.Adachi, S.Muto
  • Journal Title: phys.stat.sol(b) 246 Pages: 775-778
  • Peer Reviewed
• [Journal Article] Observation of enhanced luminescence emitted from InAs quantum dots with direct contact to superconducting Niobium stripe (2009)
  • Author(s): Y.Idutsu, M.Takada, Y.Hayashi, T.Akazaki, H.Sasakura, H.Kumano, I.Suemune
  • Journal Title: phys.stat.sol(c) 6 Pages: 849-852
  • NAID: 120002958487
  • Peer Reviewed
• [Journal Article] Exciton Coherence in Clean Single InP/InAsP/InP Nanowire Quantum Dots Emitting in Infra-red Measured by Fourier Spectroscopy (2009)
  • Author(s): H.Sasakura, H.Kumano, I.Suemune, J.Motohisa, Y.Kobayashi, M.van Kouwen, K.Tomioka, T.Fukui, N.Akopian, V.Zwiller
  • Journal Title: Journal of Physics 193
  • Peer Reviewed
• [Presentation] Single Photon Generation from Semiconductor Nanostructures (2012)
  • Author(s): I.Suemune, H.Kumano, H.Sasakura, J.Motohisa, Y.Kobayashi, K.Tomioka, T.Fukui, V.Zwiller, S.Dorenbos, M.van Kouwen, N.Akopian
  • Organizer: The 5th International Symposium on Global COE Program of Center for Next-Generation Information Technology based on Knowledge Discovery and Knowledge Federation (GCOE-NGIT 2012)
  • Place of Presentation: Hokkaido Univ.(Sapporo)
• [Presentation] Investigation of Carrier Dynamics in a Single InAs Quantum Dot (2012)
  • Author(s): H.Nakajima, K.Kumano, H.Iijima, S.Odashima, I.Suemune
  • Organizer: The 5th International Symposium on Global COE Program of Center for Next-Generation Information Technology based on Knowledge Discovery and Knowledge Federation (GCOE-NGIT 2012)
  • Place of Presentation: Hokkaido Univ.(Sapporo)
• [Presentation] Two-photon Emission Process with Cooper-pair Injection into Semiconductors (2012)
  • Author(s): H.Sasakura, C.Hermannsdadter, H.Kumano, I.Suemune
  • Organizer: Photonic West
  • Place of Presentation: The Moscone Center, San Franscisco, (USA)
• [Presentation] 単一量子ドットにおける中性-荷電状態間遷移の評価と考察 (2012)
  • Author(s): 中島秀朗, 熊野英和, 飯島仁史, 小田島聡, 末宗幾夫
  • Organizer: 春季第59回応用物理学関係連合講演会
  • Place of Presentation: 早稲田大学(東京都)
• [Presentation] 擬似的固体量子光源を用いたWerner状態仮定の有効性の検討 (2012)
  • Author(s): 松田恒祐、熊野英和、末宗幾夫
  • Organizer: 第47回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北海道大学(札幌市)
• [Presentation] 単一InAs量子ドット中における状態間遷移に関する考察 (2012)
  • Author(s): 中島秀朗、熊野英和、石原渚、飯島仁史、小田島聡、末宗幾夫
  • Organizer: 第47回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北海道大学(札幌市)
• [Presentation] Characterization of two-photon mixed states employed with polarization entangled-classical hybrid photon source (2011)
  • Author(s): K. Matsuda, H. Kumano, S. Ekuni, H. Sasakura, and I. Suemune
  • Organizer: Quantum Information Processing and Communication
  • Place of Presentation: Zurich, Switzerland
• [Presentation] Metal-embedded semiconductor single quantum dot as a novel highly pure single-photon source (2011)
  • Author(s): H. Nakajima, S. Ekuni, H. Kumano, Y. Idutsu, S. Ida, H. Sasakura, and I. Suemune
  • Organizer: SPIE photonics west
  • Place of Presentation: Moscone Convention Center, San Francisco, USA
• [Presentation] Band Structure and Thermal Escape Processesof Strained InGaSb/AlGaSb Quantum Wells (2011)
  • Author(s): N.A.Jahan, H.Iijima C.Hermannstadter, P.Ahirwar, T.J.Rotter, G.Balakrishnan, H.Kumano, I.Suemune
  • Organizer: Electronic Materials Conference
  • Place of Presentation: Univ.of California, Santa Barbara, CA, (USA)
• [Presentation] Highly Pure Single-Photon Emission from a Metal-embedded Single Quantum Dot under Quasi-resonant Excitation (2011)
  • Author(s): H.Nakajima, H.Kumano, H.Iijima, I.Suemune
  • Organizer: The 15th Conference on Modulated Semiconductor Structures (MSS15)
  • Place of Presentation: Turnbull Conference Center, Tallahassee, FL, (USA)
• [Presentation] Drastic Enahancement of Interband Optical Transition Probability with Electron Pairing in Semiconductors (2011)
  • Author(s): I.Suemune, H.Sasakura, C.Hermannstadter, J.-H.Huh, Y.Asano, K.Tanaka, T.Akazaki, H.Kumano
  • Organizer: IQEC/CLEO Pacific Rim 2011
  • Place of Presentation: Sydney Convention and Exhibition Center, (Australia)(招待講演)
• [Presentation] Characterization of Two-photon Mixed States Employed with Polarization Entangled-classical Hybrid Photon Source (2011)
  • Author(s): K.Matsuda, H.Kumano, S.Ekuni, H.Sasakura, I.Suemune
  • Organizer: International Conference on Quantum Information Processing and Communication (QIPC 2011)
  • Place of Presentation: ETH Zurich, (Switzerland)
• [Presentation] パラメトリック下方変換と熱幅射複合光源によるWerner状態の作製と評価 (2011)
  • Author(s): 松田恒祐、熊野英和, 末宗幾夫
  • Organizer: 秋季第72回応用物理学関係連合講演会
  • Place of Presentation: 山形大学(山形市)
• [Presentation] 量子ドットにおける中性-荷電状態間遷移の評価 (2011)
  • Author(s): 中島秀朗、熊野英和、飯島仁史、笹倉弘理、末宗幾夫
  • Organizer: 秋季第72回応用物理学関係連合講演会
  • Place of Presentation: 山形大学(山形市)
• [Presentation] Ag埋め込み半導体ピラー構造を用いた高効率光子発生源の作製と発光特性評価 (2011)
  • Author(s): 飯島仁史、中島秀朗、小田島聡、熊野英和、西尾崇、松尾保孝、居城邦治、末宗幾夫
  • Organizer: 秋季第72回応用物理学関係連合講演会
  • Place of Presentation: 山形大学(山形市)
• [Presentation] Quantum-dot single photon emitter of higher photon extraction efficiency and lower multiple-photon emission probability with metal-embedded structure (2010)
  • Author(s): H. Kumano, H. Nakajima, S. Ekuni, D. Kato, S. Miyamura, J. H. Huh, H. Sasakura, and I. Suemune
  • Organizer: International Conference on Semiconductor Quantum Dots
  • Place of Presentation: Nottingham, UK
• [Presentation] Quantum-dot single photon emitter of higher photon extraction efficiency and lower multiple-photon emission probability with metal-embedded structure (2010)
  • Author(s): H.Kumano
  • Organizer: International Conference on Semiconductor Quantum Dots (QD2010)
  • Place of Presentation: Nottingham, UK
• [Presentation] 量子リング構造における核磁場の双安定特性 (2009)
  • Author(s): 和田雅樹、笹倉弘理、熊野英和、末宗幾夫
  • Organizer: 秋季第70回応用物理学会学術講演会
  • Place of Presentation: 富山大学
• [Presentation] Conversion of Photon polarization and exciton spins in Semiconductor Quantum Dots (2009)
  • Author(s): H. Kumano
  • Organizer: International Workshop on Photons and Spins in Nanostructures
  • Place of Presentation: Hokkaido University, Sapporo, Japan
• [Presentation] Two-mode photon interference in a quantum-dot single photon emitter (2009)
  • Author(s): H. Kumano, H. Nakajima, S. Ekuni, H. Sasakura, and I. Suemune
  • Organizer: International conference on Modulated Semiconductor Structures
  • Place of Presentation: Kobe Kobe, Japan
• [Presentation] Two-mode photon interference in a quantum-dot single photon emitter (2009)
  • Author(s): H.Kumano, H.Nakajima, S.Ekuni, H.Sasakura, I.Suemune
  • Organizer: 14th International Conference on Modulated Semiconductor structures(MSS-14)
  • Place of Presentation: 神戸コンベンションセンター(神戸市)
• [Remarks]
  • URL: http://nanophoto.es.hokudai.ac.jp/
• [Remarks]
  • URL: http://nanophoto.es.hokudai.ac.jp/