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Non-degenerate polarization-entangled photon pair generation device and non-degenerate polarization-entangled photon pair generation method

外国特許コード F120006134
整理番号 A241-75WO
掲載日 2012年1月6日
出願国 アメリカ合衆国
出願番号 67257808
公報番号 20110315901
公報番号 08173982
出願日 平成22年2月8日(2010.2.8)
公報発行日 平成23年12月29日(2011.12.29)
公報発行日 平成24年5月8日(2012.5.8)
国際出願番号 PCT/JP2008/072441
国際公開番号 WO2009/093391
国際出願日 平成20年12月10日(2008.12.10)
国際公開日 平成21年7月30日(2009.7.30)
優先権データ
  • 特願2008-014938 (2008.1.25) JP
発明の名称 (英語) Non-degenerate polarization-entangled photon pair generation device and non-degenerate polarization-entangled photon pair generation method
発明の概要(英語) A non-degenerate polarization-entangled photon pair generation device (1) that efficiently and easily generates non-degenerate polarization-entangled photon pairs includes: a quantum-entangled photon pair generator (2) including a single crystal in which periodically poled structures (3a, 3b) having different periods are formed; and a light radiating unit (4) for entering light into the quantum-entangled photon pair generator (2) such that the light passes through the periodically poled structure (3a) and then through the periodically poled structure (3b). A period of the periodically poled structure (3a) is different from a period of the periodically poled structure (3b) such that a parabola indicative of a relation between an emission angle and a wavelength of a polarized photon emitted based on light incident on the periodically poled structure (3a) comes into contact with a parabola indicative of a relation between an emission angle and a wavelength of polarized photon emitted based on light incident on the periodically poled structure (3b), within an allowable range under a phase matching condition.
  • 発明者/出願人(英語)
  • Edamatsu, Keiichi; Natori [JP]
  • Shimizu, Ryosuke; Sendai [JP]
  • Nagano, Shigehiro; Fujisawa [JP]
  • Japan Science and Technology Agency, Saitama [JP]
国際特許分類(IPC)
米国特許分類/主・副
  • 250/493.1
  • 356/317
  • 356/318
  • 356/417
  • 356/432
  • 356/484
  • 359/326
  • 257/21
  • 257/14
  • 257/9
参考情報 (研究プロジェクト等) CREST Creation of Nanodevices and System Based on New Physical Phenomena and Functional Principles AREA
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