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Photon Antibunching Observed from an InAlAs Single Quantum Dot

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Title: Photon Antibunching Observed from an InAlAs Single Quantum Dot
Authors: Kimura, Satoshi Browse this author
Kumano, Hidekazu Browse this author →KAKEN DB
Endo, Michiaki Browse this author
Suemune, Ikuo Browse this author →KAKEN DB
Yokoi, Tomonori Browse this author
Sasakura, Hirotaka Browse this author →KAKEN DB
Adachi, Satoru Browse this author →KAKEN DB
Muto, Shunichi Browse this author →KAKEN DB
Song, Hai Zhi Browse this author
Hirose, Shinichi Browse this author
Usuki, Tatsuya Browse this author
Issue Date: 2005
Publisher: Japan Society of Applied Physics
Journal Title: Japanese Journal of Applied Physics. Pt. 2, Letters & express letters
Volume: 44
Issue: 25
Start Page: L793
End Page: L796
Publisher DOI: 10.1143/JJAP.44.L793
Abstract: Single-photon emitters and detectors are the key devices to realize secure communications with single-photon-based quantum cryptography and single-photon-based quantum computing. InAlAs quantum dots (QDs) cover the wavelength range with high quantum efficiencies of Si-based single-photon detectors. Clear photon antibunching was observed from an InAlAs single QD under weak excitations. To realize single-photon emitters on demand, complete population of the QD energy states before the photon emission events is necessary, but the measured antibunching properties were dependent substantially on the photo-excitation powers. The physical origin of this problem is discussed and the criterion to distinguish the real deviation from the photon antibunching condition and the artifact of the measurements is clarified. The capability of single-photon emissions on demand will be demonstrated with photon antibunching under pulsed operations.
Rights: Copyright © 2005 The Japan Society of Applied Physics
Type: article (author version)
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 熊野 英和

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