2011 Fiscal Year Final Research Report
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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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 |
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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[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
Pages: 157403-1-5
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
Pages: 054001-1-4
Peer Reviewed
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