Study on fabricating entangled photon sources which are highly tolerant to the structural fluctuation
Project/Area Number |
21681020
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Microdevices/Nanodevices
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Research Institution | Hokkaido University |
Principal Investigator |
KUMANO Hidekazu 北海道大学, 電子科学研究所, 准教授 (70292042)
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥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.
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Report
(4 results)
Research Products
(39 results)
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[Journal Article] Enhanced photon generation in a Nb/n-InGaAs/p-InP superconductor/semiconductor-diode light emitting device2011
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
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Journal Title
Phys. Rev. Lett
Volume: 107
Related Report
Peer Reviewed
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[Journal Article] A Cooper-Pair Light-Emitting Diode : Temperature Dependence of Both Quantum Efficiency and Radiative Recombination Lifetime2010
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
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Journal Title
Appl. Phys. Express
Volume: 3
NAID
Related Report
Peer Reviewed
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[Presentation] Single Photon Generation from Semiconductor Nanostructures2012
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)
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