JP2017527857A - 平面デバイスを用いた偏光および波面の同時制御 - Google Patents
平面デバイスを用いた偏光および波面の同時制御 Download PDFInfo
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- G—PHYSICS
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- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0215—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having a regular structure
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
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Abstract
Description
本発明は、陸軍研究所によって付与された交付番号W911NF−14−1−0345の下で連邦政府の支援を受けてなされたものである。連邦政府は本発明の一定の権利を有する。
および
は、入力光の電場のx成分およびy成分であり、
および
は、出力光の電場のx成分およびy成分であり、Tは、2×2のジョーンズ行列である。(1)式を満たす対称かつユニタリのジョーンズ行列の要素は、以下の方程式を用いて求めることができる。
[参考文献]
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Claims (17)
- 基板と、
前記基板上の4回非対称の電磁散乱素子の配列と、
を備えるデバイスであって、
前記4回非対称の電磁散乱素子は、前記基板よりも高い屈折率を有するデバイス。 - 前記基板はシリカでできており、前記4回非対称の電磁散乱素子はアモルファスシリコンでできている、請求項1に記載のデバイス。
- 前記4回非対称の電磁散乱素子は、4回非対称のシリンダーである、請求項1または2に記載のデバイス。
- 前記4回非対称のシリンダーは、偏光依存型の散乱応答を有する、請求項3に記載のデバイス。
- 前記4回非対称のシリンダーの長軸は、所望の偏光依存型の散乱応答に従って指向される、請求項3または4に記載のデバイス。
- 前記4回非対称のシリンダーは、第1群および第2群の4回非対称のシリンダーを備え、前記第1群は、前記第2群の長軸とは異なる方向に指向された長軸を有する、請求項3〜5のいずれか一項に記載のデバイス。
- 前記4回非対称のシリンダーの1つ以上の長軸、短軸、長軸方向、及び高さは、所望の偏光依存型の散乱応答に従って構成される、請求項3または4に記載のデバイス。
- 前記4回非対称のシリンダーの1つ以上の長軸、短軸、長軸方向、及び高さは、前記長軸または前記短軸に平行な偏光で前記デバイスに入射した電磁波が、前記デバイスの出射後に、不変の偏光を有するが、シフトした位相を有するように構成される、請求項3または4に記載のデバイス。
- 前記4回非対称のシリンダーは、楕円形、長方形、または菱形である、請求項3に記載のデバイス。
- 前記4回非対称のシリンダーの長軸、短軸、長軸方向、及び高さは、前記デバイスに入射し、前記デバイスから出射する電磁波に対するジョーンズ行例に従って決定される、請求項8に記載のデバイス。
- 前記4回非対称の電磁散乱素子の寸法は、前記デバイスの動作波長の範囲に従って選択される、請求項1〜10のいずれか一項に記載のデバイス。
- デバイスにより散乱された電磁波の所望の偏光および位相シフトを決定するステップであって、前記デバイスは、基板と、前記基板上の4回非対称の電磁散乱素子の配列とを備え、前記電磁散乱素子は、前記基板よりも高い屈折率を有するステップと、
前記散乱された電磁波のジョーンズ行列を計算するステップと、
前記ジョーンズ行列に従って、各4回非対称の電磁散乱素子の長軸、短軸、高さ、及び前記長軸の方向を決定するステップと、
各4回非対称の電磁散乱素子の前記長軸、前記短軸、前記高さ、及び前記長軸の方向に従って、前記デバイスを組み立てるステップと、
を有する方法。 - 前記4回非対称の電磁散乱素子はアモルファスシリコンでできており、前記基板はシリカでできている、請求項12に記載の方法。
- 前記4回非対称の電磁散乱素子は、楕円形、長方形、又は菱形である、請求項12または13に記載の方法。
- デバイスによって散乱された電磁波のジョーンズ行列を計算するステップであって、前記デバイスは、基板と前記基板上の4回非対称の電磁散乱素子の配列とを備え、前記電磁散乱素子は、前記基板よりも高い屈折率を有するステップと、
各4回非対称の電磁散乱素子の長軸、短軸、高さ、及び前記長軸の方向を、前記ジョーンズ行列に従って決定するステップと、
各4回非対称の電磁散乱素子の前記長軸、前記短軸、前記高さ、及び前記長軸の方向に従って前記デバイスを組み立てるステップと、
前記組み立てられたデバイスによって前記散乱された電磁波の偏光および位相シフトを制御するステップと、
を有する方法。 - 前記4回非対称の電磁散乱素子はアモルファスシリコンでできており、前記基板はシリカでできている、請求項15に記載の方法。
- 前記4回非対称は、楕円形、長方形、又は菱形である、請求項15または16に記載の方法。
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