Study on coherent control of exciton states in quantum dots embeddedin pyramidal microcavities

2008 Fiscal Year Final Research Report

• Project/Area Number: 16106005
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Electronic materials/Electric materials
• Research Institution: Hokkaido University
• Principal Investigator: SUEMUNE Ikuo Hokkaido University, 電子科学研究所, 教授 (00112178)
• Co-Investigator(Kenkyū-buntansha): KUMANO Hidekazu 北海道大学, 電子科学研究所, 准教授 (70292042)
• Co-Investigator(Renkei-kenkyūsha): UESUGI Katsuhiro 室蘭工業大学, 工学部, 准教授 (70261352)
• Project Period (FY): 2004 – 2008
• Keywords: 量子ドット / 共振器 / コヒーレンス / スピン反転 / 光子 / 円偏光

Research Abstract

微小光共振器中で量子ドットの励起子と光子の結合を強め、励起子状態をコヒーレントに制御することを目指して研究し、発光寿命より10倍長いスピンフリップ時間、磁場印可無しで光子円偏光-電子スピンー光子円偏光へ効率92%の高い量子状態変換,金属共振器の開発とこれによる量子ドット励起×光子取り出し効率の40倍改善などの成果を得た。

Research Products

• [Journal Article] Fourier Spectroscopy of Decoherence of Exciton and Their Complexes in Single InAlAs Quantum Dots (2008)
  • Author(s): S. Adachi, H. Sasakura, N. Yatsu, R. Kaji, K. Yamada, S. Muto, H. Kumano, I. Suemune
  • Journal Title: phys. stat. sol. (c) Vol.5 Pages: 351-355
  • Peer Reviewed
• [Journal Article] HighlyCircular-polarized Single Photon Generation from a Single Quantum Dot at Zero MagneticField (2008)
  • Author(s): H. Kobayashi, H. Kumano, M. Endo, M. Jo, I. Suemune, H. Sasakura, S. Adachi, and S. Muto
  • Journal Title: Microelectronics Journal Vol.39 Pages: 327-330
  • Peer Reviewed
• [Journal Article] Single Photon Emission with High Degree of Circular Polarization from a Single Quantum Dot Under Zero Magnetic Field (2008)
  • Author(s): H. Kumano, H. Kobayashi, Y. Hayashi, M. Jo, I. Suemune, H.Sasakura, S.Adachi, and S. Muto
  • Journal Title: Physica E Vol.40 Pages: 1824-1827
  • Peer Reviewed
• [Journal Article] Electron Effective Mass and Mobility in Heavily Dopedn-Ga(AsN) Probed by Raman Scattering (2008)
  • Author(s): J. Ibanez, R. Cusco, E. Alarcon-Llado, L. Artus, A.Patane, D. Fowler, L. Eaves, K. Uesugi, and I. Suemune
  • Journal Title: Journal of Applied Physics Vol.103 Pages: 103528-1-5
  • Peer Reviewed
• [Journal Article] Optical-phononMediated Exciton Energy Relaxation with Highly PreservedSpin States in a Single Quantum Dot (2008)
  • Author(s): H. Kumano, H. Kobayashi, S. Ekuni, Y. Hayashi, M. Jo, H. Sasakura, S. Adachi, S. Muto, and I. Suemune
  • Journal Title: Phys. Rev B 78 Pages: 081306-1-4R
  • Peer Reviewed
• [Journal Article] Exciton-phonon InteractionsObserved in Blue Emission Band in Tedelta-doped ZnSe (2008)
  • Author(s): M. Jo, Y. Hayashi, H. Kumano, and I. Suemune
  • Journal Title: J. Appl. Phys Vol.104 Pages: 033531-1-4
  • Peer Reviewed
• [Journal Article] Fabricationand Characterization of a High Q Microdisc Laser Using InAsQuantum Dot Active Regions (2007)
  • Author(s): P. Thilakan, G. Sasikala, and I. Suemune
  • Journal Title: Nanotechnology Vol.18 Pages: 055401-1-4
  • Peer Reviewed
• [Journal Article] LuminescenceStudy on Evolution from Te Isoelectronic Centers to Type-IIZnTe Quantum Dots Grown by Metalorganic Molecular-beamEpitaxy (2007)
  • Author(s): M. Jo, M. Endo, H. Kumano, and I. Suemune
  • Journal Title: J. Cryst. Growth Vol.301-302 Pages: 277-280
  • Peer Reviewed
• [Journal Article] Nucleation and Growth Mode of GaN on Vicinal SiC Surfaces (2007)
  • Author(s): M. Ebihara, S. Tanaka, and I. Suemune
  • Journal Title: Japanese J. Applied Physics Vol.46, No.15 Pages: 348-351
  • Peer Reviewed
• [Journal Article] Detailed Measurements of Nuclear SpinPolarizations in a Single InAlAs Quantum Dot ThroughOverhauser Shift of Photoluminescece (2007)
  • Author(s): R. Kaji, S. Adachi, H. Sasakura, S. Muto, H. Kumano, and I. Suemune
  • Journal Title: J. Supercond. Nov. Magn Vol.20 Pages: 447-451
  • Peer Reviewed
• [Journal Article] Room-temperature Stimulated Emission from ZnO Thin FilmsGrown by Radio-frequency Magnetron Sputtering (2007)
  • Author(s): Z. G. Yao, X. Q. Zhang, I. Suemune, S. H. Huang
  • Journal Title: Luminescence Vol.122-123 Pages: 825-827
  • Peer Reviewed
• [Journal Article] Room Temperature Ultraviolet Lasing Action inHigh-Quality ZnO Thin Films (2007)
  • Author(s): X. Q. Zhang, I. Suemune, H. Kumano, Z. G. Yao, S. H. Huang
  • Journal Title: J. Luminescence Vol.122-123 Pages: 828-830
  • Peer Reviewed
• [Journal Article] Role of a NitrogenPrecursorSuppliedonInAs QuantumDotsSurfacesin Their Emission Wavelengths (2006)
  • Author(s): I. Suemune, G. Sasikala, H. Kumano, K. Uesugi, Y. Nabetani, T. Matsumoto, J.-T. Maeng, and T. -Y. Seong
  • Journal Title: Jpn. J. Appl. Phys. Vol.45, No.21 Pages: 529-532
  • Peer Reviewed
• [Journal Article] Application ofInGaAs/GaAsN Strain-compensated Superlattice to InAsQuantumDots (2006)
  • Author(s): W. Zhang, K. Uesugi, and I. Suemune
  • Journal Title: J. Appl. Phys Vol.99, No.10 Pages: 103103-1-7
  • Peer Reviewed
• [Journal Article] Triggered Single Photon Emission and Cross-correlation Propertiesin In AlAsQuantumDot (2006)
  • Author(s): H. Kumano, S. Kimura, M. Endo, I. Suemune, H. Sasakura,S. Adachi, S. Muto, H. Z. Song, S. Hirose, and T. Usuki
  • Journal Title: PhysicaE : Low-DimensionalSystems & Nano-Structures Vol.32 Pages: 144-147
  • Peer Reviewed
• [Journal Article] Deterministic Single-photon andPolarization-correlated Photon-pair Generations from aSingle InAlAs Quantum Dot (2006)
  • Author(s): H. Kumano, S. Kimura, M. Endo, H. Sasakura, S. Adachi, S. Muto, and I. Suemune
  • Journal Title: Journal of Nanoelectronics and Optoelectronics Vol.1(Invited Review Paper) Pages: 39-51
  • Peer Reviewed
• [Journal Article] Intrinsic Exciton Transitions in High-Quality ZnOThin Films Grown by Plasma-enhanced Molecular-beam Epitaxyon Sapphire Substrates (2006)
  • Author(s): X. Q. Zhang, Z. G. Yao, S. H. Huang, I. Suemune, and H. Kumano
  • Journal Title: J. Appl. Phys Vol.99 Pages: 063709-1-4
  • Peer Reviewed
• [Journal Article] Origin ofAsymmetric Splitting of a Neutral Exciton in a SingleSemiconductor Quantum Dot (2006)
  • Author(s): I. Suemune, H. Kumano, S. Kimura, H. Sasakura, S. Adachi, S. Muto, H. Z. Song, S. Hirose, and T. Usui
  • Journal Title: phys. stat. sol Vol.3 No.11 Pages: 3908-3911
  • Peer Reviewed
• [Journal Article] Photon Antibunching Observed from anInAlAsSingleQuantumDot (2005)
  • Author(s): S. Kimura, H. Kumano, M. Endo, I. Suemune, T. Yokoi, H. Sasakura, S. Adachi, S. Muto, H. Z. Song, S. Hirose, and T. Usuki
  • Journal Title: Jpn. J. Appl. Phys. Express Lett. Vol.44, No.25 Pages: L793-L796
  • Peer Reviewed
• [Journal Article] Nucleation Stages ofCarbon Nanotubes on SiC (0001) by SurfaceDecomposition (2005)
  • Author(s): K. Hayashi, S. Mizuno, S. Tanaka, H. Toyoda, H. Tochihara, I. Suemune
  • Journal Title: Jpn. J. Appl. Phys. Vol.44, No.25 Pages: 803-805
  • Peer Reviewed
• [Journal Article] Single-Photon Generation from InAlAsSingle QuantumDot (2005)
  • Author(s): S. Kimura, H. Kumano, M. Endo, I. Suemune, T. Yokoi,H. Sasakura, S. Adachi, S. Muto, H. Z. Song, S. Hirose, T. Usuki
  • Journal Title: phys. Stat. sol.(c) No.11 Pages: 3833-3837
  • Peer Reviewed
• [Journal Article] Photon-spin Qubit-conversion Based on Overhauser Shift of Zeeman Energies in Quantum Dots (2005)
  • Author(s): S. Muto, S. Adachi, T. Yokoi, S. Kayamori, H. Sasakura, I. Suemune
  • Journal Title: Appl. Phys. Lett Vol.87, No.11 Pages: 112506
  • Peer Reviewed
• [Journal Article] Dynamical properties of atom-like emissions from single localized states in ZnCdS ternary mesa-shaped structures (2004)
  • Author(s): H. Kumano, Y. Hitaka, I. Suemune
  • Journal Title: phys. stat. sol Vol.241, No.3 Pages: 503-506
  • Peer Reviewed
• [Journal Article] Study of Optimal Coupling of ZnS Pyramidal Microcavities with Distributed Bragg Reflectors (2004)
  • Author(s): D. Nakaya, Y. Hitaka, S. Kimura, H. Kumano, I. Suemune
  • Journal Title: phys. stat. sol Vol.1, No.4 Pages: 1034-1037
  • Peer Reviewed
• [Journal Article] Formation of ohmic contacts to p-type ZnO (2004)
  • Author(s): Makoto Kurimoto, A. B. M. Almamun Ashrafi, Masato Ebihara, Katsuhiro Uesugi, Hidekazu Kumano, Ikuo Suemune
  • Journal Title: phys. stat. sol.(b) Vol.241, No.3 Pages: 635-639
  • Peer Reviewed
• [Journal Article] Epitaxial ZnO Growth and p-Type Doping with MOMBE (2004)
  • Author(s): I, Suemune, ABM. Almamun Ashrafi, M, Ebihara, M.Kurimoto, H. Kumano, T.-Y. Seong, B.-J. Kim, Y.-W. Ok
  • Journal Title: phys. stat. sol.(b) Vol.241, No.3 (Invited Paper) Pages: 640-647
  • Peer Reviewed
• [Journal Article] Surface-emitting Stimulated Emission in High-quality ZnO Thin Films (2004)
  • Author(s): X. Q. Zhang, I. Suemune, H. Kumano, J. Wang, S. H. Huang
  • Journal Title: J. Appl. Phys. Vol.96, No.7 Pages: 3733-3736
  • Peer Reviewed
• [Journal Article] Theoretical Studies of StrainStatesin InAs Quantum Dots and Dependence on Their CappingLayers
  • Author(s): Y. Nabetani, T. Matsumoto, G. Sasikala, X. Q. Zhang, I. Suemune
  • Journal Title: J. Appl. Phys Vol.98, No.6 Pages: 063502-1-7
  • Peer Reviewed
• [Presentation] Spin-flip Quenchingduring Energy Relaxation Processes Mediated byOptical-phonons in a Single Quantum Dot (2008)
  • Author(s): H. Kumano, H. Kobayashi, S. Ekuni, H. Sasakura, I. Suemune, S. Adachi, S. Muto
  • Organizer: 5thInternational Conf. on Semiconductor Quantum Dots
  • Place of Presentation: Gyeongju, Korea
  • Year and Date: 20080511-16
• [Presentation] Optical-phonon Mediated Efficient Spin-state Transfer Between Electron Spin and Photon Polarization with a Single Quantum Dot without External Field (2008)
  • Author(s): H. Kumano, S. Ekuni, H. Kobayashi, H. Sasakura, I.Suemune, S. Adachi, S. Muto
  • Organizer: International conference on Physics of Light-Matter Coupling in Nanostructures (PLMCN8)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20080407-11
• [Presentation] Nuclear Field-mediated Measurement of Effective g factors of Quantum Dots (2008)
  • Author(s): S. Adachi, R. Kaji, K. Yamada, S. Muto, H. Sasakura, H. Kumano, I. Suemune
  • Organizer: International conference on Physics of Light-Matter Coupling in Nanostructures (PLMCN8)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20080407-11
• [Presentation] Development of Nanofabrication Techniques for Nanophotonic Structures and Devices (2008)
  • Author(s): Y. Idutsu, H. Sato, S. Ito, I. Suemune
  • Organizer: RIES-Symposium
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 20080128-29
• [Presentation] Growth and CharacterizationofSemiconductorNanostructures with Type-I and Type II Heterojunctions (2008)
  • Author(s): M. Sato, M. Takada, Y. Idutsu, H. Kumano, I. Suemune
  • Organizer: RIES-Symposium
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 20080128-29
• [Presentation] Photon Generations from Semiconductor Quantum Dots and Their Applications to Next-Generation Information Technology (2008)
  • Author(s): I. Suemune, H. Kumano, Y. Hayashi, M. Jo, Y. Idutsu
  • Organizer: 2008 International Symposium on Global COE Program of Center for Next-Generation Information Technology based on Knowledge Discovery and Knowledge Federation (GCOE-NGIT 2008, Hokkaido University)
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 20080122-23
• [Presentation] Fourier Spectroscopy of Decoherence of Exciton and Exciton Complexes in Single InAlAs Quantum Dots (2007)
  • Author(s): N. Yatsu, S. Adachi, H. Sasakura, S. Muto, H. Kumano, I. Suemune
  • Organizer: 15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors (HCIS-15)
  • Place of Presentation: Tokyo
  • Year and Date: 20070723-27
• [Presentation] High Degree of Circular Polarization Single Photon Emission from a Single Quantum Dot Under Non-Resonant Excitation and Zero Magnetic Field (2007)
  • Author(s): H. Kumano, H. Kobayashi, Y. Hayashi, M. Endo, I.Suemune, H. Sasakura, S. Adachi, S. Muto
  • Organizer: International Conference on Electronic Properties of Two-Dimensional Systems and Modulated Semiconductor Structures, Genova
  • Place of Presentation: Italy(S. M2)
  • Year and Date: 20070715-20
• [Presentation] Surface Passivation Effect of Electron-beam Resist on InAs Quantum Dots and Their Improved Luminescence Efficiency (2007)
  • Author(s): Y. Idutsu, M. Endo, K. Uesugi, I. Suemune
  • Organizer: 19thInternational Conference on Indium Phosphide and Related Materials (IPRM'07)(PB21, Conference Proceedings)
  • Place of Presentation: Matsue, Japan
  • Year and Date: 20070514-18
• [Presentation] Growth Process of GaAs Cap Layers on GaSb/GaAs Quantum Dot Surfaces (2007)
  • Author(s): K. Uesugi, M. Sato, Y. Idutsu, I. Suemune
  • Organizer: 19th International Conference on Indium Phosphide and Related Materials (IPRM'07)(ThA1-4)
  • Place of Presentation: Matsue, Japan
  • Year and Date: 20070514-18
• [Presentation] Highly Circular-polarized Photon Generation from a Single Quantum Dot at Zero Magnetic Field (2007)
  • Author(s): H. Kobayashi, H. Kumano, M. Endo, I. Suemune, H. Sasakura, S. Adachi, S. Muto
  • Organizer: Sixth International Conference on Low Dimensional Structures and Devices (LDSD2007)
  • Place of Presentation: San Andres, Mexico.
  • Year and Date: 20070415-20
• [Presentation] Photon Generation Processes from Single Quantum Dots (2007)
  • Author(s): Ikuo Suemune
  • Organizer: International Symposium for the Promotion of Academic Exchange, Sapporo
  • Year and Date: 2007-03-22
• [Presentation] Self-organized Nanofacets on Vicinal 4H-SiC (0001) Surfaces (2006)
  • Author(s): M. Fujii, S. Tanaka, I. Suemune
  • Organizer: The 8th RIES-Hokudai International Symposium
  • Place of Presentation: Sapporo
  • Year and Date: 20061211-12
• [Presentation] Spin Splitting of Neutral Exciton Emission from A Single Quantum Dot (2006)
  • Author(s): H. Kobayashi, H. Kumano, M. Endo, I. Suemune, H.Sasakura, S. Adachi, S. Muto
  • Organizer: The 8th RIES-Hokudai International Symposium
  • Place of Presentation: Sapporo
  • Year and Date: 20061211-12
• [Presentation] Luminescence Study on Evolution from Te Isoelectronic Centers to Type-II ZnTe Quantum Dots Grown by Metalorganic Molecular-beam Epitaxy (2006)
  • Author(s): M. Jo, M. Endo, H. Kumano, and I. Suemune
  • Organizer: 14^<th> International Conference on Molecular Beam Epitaxy
  • Place of Presentation: Waseda University, Tokyo, Japan
  • Year and Date: 20060903-08
• [Presentation] Optically Pumped Nuclear Spin Polarization in a Self-assembled Quantum Dot (2006)
  • Author(s): T. Mukumoto, T. Yokoi, S. Adachi, H. Sasakura, H. Kumano, S. Muto I. Suemune
  • Organizer: 4th International Conference on Physics and Applications of Spin-related Phenomena in Semiconductors (PASPS-IV)
  • Place of Presentation: Sendai
  • Year and Date: 20060815-18
• [Presentation] Time-resolved Photoluminescence in Annealed Self-assembled InAs Quantum Dots (2006)
  • Author(s): H. Nishida, S. Kayamori, H. Sasakura, S. Adachi, S. Muto, I. Suemune
  • Organizer: 4th International Conference on Physics and Applications of Spin-related Phenomena in Semiconductors (PASPS-IV)
  • Place of Presentation: Sendai
  • Year and Date: 20060815-18
• [Presentation] Polarization Preservation between Photon Pairs from a Biexciton-Exciton Cascaded Decay Process in a Single InAlAs Quantum Dots (2006)
  • Author(s): H. Kumano, S. Kimura, M. Endo, S. Adachi, H. Sasakura, S. Muto, I. Suemune
  • Organizer: 28th International Conference on the Physics of Semiconductors
  • Place of Presentation: Vienna, Austria
  • Year and Date: 20060724-28
• [Presentation] Overhauser Shift in a Self-assembled Quantum Dot (2005)
  • Author(s): T. Yokoi, S. Adachi, H. Sasakura, S. Muto, H. Kumano, I. Suemune
  • Organizer: Spintech III
  • Place of Presentation: Awaji Island
  • Year and Date: 20050801-05
• [Presentation] Bright Luminescence from InAs/GaAs Open Quantum Dots at Room Temperature : Dependence on GaAs Surface Reconstructions (2005)
  • Author(s): K. Uesugi, W. Zhang, I. Suemune
  • Organizer: The 23rd International Conference onDefects in Semiconductors (ICDS-23)
  • Place of Presentation: Awaji Island, Hyogo, Japan
  • Year and Date: 20050724-29
• [Presentation] Anisotropic Lattice Deformation of InAs Self-assembled Quantum Dots Strain Compensated with GaAsN Burying Layers (2005)
  • Author(s): N. Matsumura, S. Muto, S. Ganapathy, I. Suemune, K. Numata, K. Yabuta
  • Organizer: 47^<th> TMS 2005 Electronic Materials Conference
  • Place of Presentation: University of California Santa Barbara, MM3.
  • Year and Date: 20050622-24
• [Presentation] Highly Pure Single Photon Generation from Single Quantum Dot (2005)
  • Author(s): S. Kimura, H. Kumano, M. Endo, I. Suemune, T. Yokoi, H. Sasakura, S. Adachi, S. Muto, H. Z. Song, S. Hirose, . Usuki
  • Organizer: 5^<th> International Conference on Physics of Light-Matter Coupling in Nanostructures
  • Place of Presentation: Glasgow, Scotland
  • Year and Date: 20050608-11
• [Presentation] Role of Nitrogen onEmission Wavelength of InAs Quantum Dots : InAs/GaAs Interfaces and Strain-compensating GaAsN Burying Layers (2005)
  • Author(s): I. Suemune, G. Sasikala, K. Uesugi, N. Matsumura,Y. Nabetani, T. Matsumoto
  • Organizer: Symposium on Dilute Nitride Semiconductors : from Atomsto Devices.
  • Place of Presentation: APS March Meeting(LA)
  • Year and Date: 20050321-25
• [Presentation] Single Photon Emission from a Single InAlAs Quantum Dot (2005)
  • Author(s): H. Kumano, S. Kimura, M. Endo,I. Suemune, H. Sasakura,S. Adachi, S. Muto, H. Z. Song, S. Hirose, T. Usuki
  • Organizer: International Conference on Nanoelectronics, Nanostructures and Carrier Interactions (NNIC2005)
  • Place of Presentation: Atsugi
  • Year and Date: 20050130-0202
• [Presentation] Formation of Single Localized States in ZnCdS Alloys Semiconductor and Their Time-resolved Properties (2005)
  • Author(s): H. Kumano, I. Suemune
  • Organizer: First International Symposium on Nanometer-scale Quantum Physics
  • Place of Presentation: Ookayama
  • Year and Date: 20050126-28
• [Presentation] Improved Structural Homogeneities and Luminescence Efficiencies of InAs Quantum Dots with Nitridation on Dots Surfaces (2005)
  • Author(s): G. Sasikala, I. Suemune,H. Kumano, K. Uesugi, Y.Nabetani, T. Matsumoto
  • Organizer: 8th International Symposium on Contemporary Photonics Technology
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20050112-14
• [Presentation] Improved Optical Quality in GaAsN-strain-compensated InAs Quantum Dots and Room Temperature Stimulated Emission from InAs QDs Embedded in a GaAs Microdisk Cavity (2004)
  • Author(s): P. Thilakan, G. Sasikala, H. Kumano I. Suemune
  • Organizer: the 5th International Conference in Low Dimensional Structures and Devices (LDSD2004)
  • Place of Presentation: Cancun-Mayan Riviera, Mexico (We-04)
  • Year and Date: 20041212-17
• [Book] 第6章半導体発光デバイス6.6量子ドット光デバイス, 微小共振器光デバイス(発光・受光の物理と応用)(小林洋志監修) (2008)
  • Author(s): 末宗幾夫
  • Total Pages: 423, 246-256
  • Publisher: 培風館
• [Book] Modern Wide Bandgap Semiconductors and Related Optoelectronic Devices (2007)
  • Author(s): I. Suemune
  • Total Pages: 500,2.2.2, 63-67
  • Publisher: Edited by K. Takahashi etal, 2007 Springer-Verlag
• [Book] Modern Wide Bandgap Semi conductors and Related Optoelectronic Devices (2007)
  • Author(s): H. Kumano, I. Suemune
  • Total Pages: 5.1.1, 281-287
  • Publisher: Edited by K. Takahashi, et.al., 2007 Springer-Verlag
• [Book] ワイドギャップ半導体光・電子デバイス(ワイドギャップ半導体の量子構造)(高橋清監修) (2006)
  • Author(s): 末宗幾夫
  • Total Pages: 421, 2.2.4, 79-84
  • Publisher: 森北出版
• [Book] Dilute Nitride Semiconductors (2005)
  • Author(s): Ikuo Suemune, Katsuhiro Uesugi, SasikalaGanapathy
  • Total Pages: 4, 137-156, 630
  • Publisher: Edited by M. Henini, 2005 Elsevier Ltd. Chapter
• [Remarks]
  • URL: http://opmac06.es.hokudai.ac.jp/
• [Patent(Industrial Property Rights)] 超伝導電極からクーパー対を注入し、量子もつれ合い光子対を生成する超伝導発光素子 (2009)
  • Inventor(s): 末宗幾夫, 田中和典, 井筒康洋
  • Industrial Property Rights Holder: 半導体発光素子
  • Industrial Property Number: 特許,特願2009-016212
  • Filing Date: 2009-01-28
• [Patent(Industrial Property Rights)] 量子ドットを含んだJFET構造超伝導発光素子 (2007)
  • Inventor(s): 末宗幾夫, 田中和典
  • Industrial Property Rights Holder: 半導体発光素子
  • Industrial Property Number: 特許,特願2007-185948
  • Filing Date: 2007-07-17
• [Patent(Industrial Property Rights)] 半導体量子ドット領域を含んだ半導体層に超伝導電極を形成したことを特徴とする半導体発光素子。 (2006)
  • Inventor(s): 末宗幾夫, 赤崎達志, 田中和典
  • Industrial Property Rights Holder: 半導体発光素子
  • Industrial Property Number: 特許,特願2006-171184
  • Filing Date: 2006-06-21