JP2012098738A5 - 選択吸収性ワイヤーグリッド偏光機器による偏光選択方法 - Google Patents

選択吸収性ワイヤーグリッド偏光機器による偏光選択方法 Download PDF

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JP2012098738A5
JP2012098738A5 JP2011264798A JP2011264798A JP2012098738A5 JP 2012098738 A5 JP2012098738 A5 JP 2012098738A5 JP 2011264798 A JP2011264798 A JP 2011264798A JP 2011264798 A JP2011264798 A JP 2011264798A JP 2012098738 A5 JP2012098738 A5 JP 2012098738A5
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polarization
selection method
thin film
polarization selection
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  1. 選択吸収性ワイヤーグリッド偏光機器により、一偏光を選択的に吸収する偏光選択方法であって、
    前記選択吸収性ワイヤーグリッド偏光機器は、
    a)屈折率を有する基体と、
    b)前記基体の上側に配設され、入射光の波長の半分よりも短い周期を有する平行金属ワイヤの配列を有する偏光ワイヤーグリッドと、
    c)前記基体の上側に配設され、前記入射光に対して光学的透過性を有する誘電体薄膜と、
    (d)前記基体の上側に配設され、前記誘電体薄膜の屈折率と異なる屈折率を有する吸収性薄膜とを備え、
    前記平行金属ワイヤの配列と平行な第1の偏光を前記吸収性薄膜により選択的に吸収し、
    前記第1の偏光と垂直な第2の偏光を選択的に透過する、
    偏光選択方法。
  2. 前記吸収性薄膜は、前記ワイヤーグリッドと前記基体の間に設けられる、
    請求項1に記載の偏光選択方法
  3. 前記選択吸収性ワイヤーグリッド偏光機器は、前記第1の偏光を、当該偏光において当初のエネルギー量の10%未満に減少する、
    請求項1又は2に記載の偏光選択方法
  4. 前記吸収性薄膜はグリッドである、
    請求項1から3のいずれか1項に記載の偏光選択方法
  5. 前記誘電体薄膜は、構造及び材料において均一であり、等質かつ一定の層内において、前記基体にわたって連続的に延びる、
    請求項1から4のいずれか1項に記載の偏光選択方法
  6. 前記吸収性薄膜は、不定比の金属酸化物、金属窒化物、金属フッ化物、金属セレン化物、金属硫化物、又は、これらの混合物を有する、
    請求項1から5のいずれか1項に記載の偏光選択方法
  7. 前記周期は120nm未満である、請求項1から6のいずれか1項に記載の偏光選択方法
  8. 前記吸収性薄膜はケイ素を有する、
    請求項1から7のいずれか1項に記載の偏光選択方法
  9. 前記吸収性薄膜の光学指数kは0.1と4.5の間である、
    請求項1から8のいずれか1項に記載の偏光選択方法
  10. 前記基体には、エッチングによる溝が設けられている、
    請求項1から9のいずれか1項に記載の偏光選択方法。
  11. 前記誘電体薄膜は、誘電体リブの配列を含み、
    前記偏光ワイヤーグリッドの前記平行金属ワイヤと前記誘電体薄膜の前記誘電体リブとは、実質的に互いに平行に配向されて実質的に等しい周期を有する、
    請求項1から10のいずれか1項に記載の偏光選択方法。
  12. 前記誘電体薄膜は、連続し、前記基体に渡って連続的に延びる、
    請求項1から11のいずれか1項に記載の偏光選択方法。
  13. 前記選択吸収性ワイヤーグリッド偏光機器は、前記偏光ワイヤーグリッドの下に配設された他の薄膜層を更に備える、
    請求項1から12のいずれか1項に記載の偏光選択方法。
  14. 前記他の薄膜層は連続し、前記基体に渡って連続的に延びる、
    請求項13に記載の偏光選択方法。
JP2011264798A 2007-06-22 2011-12-02 選択吸収性ワイヤーグリッド偏光機器による偏光選択方法 Expired - Fee Related JP5277455B2 (ja)

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