Single-photon generator and single-photon generating method

Details Single-photon generator and single-photon generating method Single-photon generator and single-photon generating method

2004-02-18

2009-02-17

Zand, Kambiz (Department: 2439)

Cryptography

Communication system using cryptography

Symmetric key cryptography

C385S147000, C380S256000, C380S278000, C257S053000

Reexamination Certificate

active

07492901

ABSTRACT:
A single-photon generator includes an exciton generation part including therein a quantum dot, an excitation part for generating an exciton in the exciton generator part, a recombination control part for controlling recombination timing of the exciton in the exciton generation part, and an optical window provided in the exciton generation part so as to pass a single photon formed as a result of recombination of the exciton, wherein the recombination control part causes, in the exciton generation part, recombination of the excitons at longer intervals than a recombination lifetime of a exciton molecule.

REFERENCES:
patent: 2002/0196827 (2002-12-01), Shields et al.
patent: 2001-230445 (2001-08-01), None
patent: 2002-268104 (2002-09-01), None
Yamamoto, Y., et al, ‘Single photons for quantum information systems’, National Institute of Informatics, Dec. 6, 2004, entire document, http://www.nii.ac.jp/pi
1/1—5.pdf.

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