マトリックス・フーリエ光学により,コンパクトなフルストークス極化カメラが可能

Noah A Rubin¹, Gabriele D'Aversa^1,2, Paul Chevalier¹

¹Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.

Science (New York, N.Y.)

|July 6, 2019

まとめ

研究者はメタ表面格子を使って新しい極化カメラを開発しましたこのコンパクトな装置は,従来の光学なしで,単一のショットで完全なストークス偏振分析を可能にし,高度な偏振画像の道を開きます.

科学分野:

光学とフォトニクス
メタマテリアル
極化光学

背景:

空間的に変化する極化要素は,光学における最近の進歩です.
伝統的な偏振分析には,大量の光学部品と複数の測定が必要です.

研究の目的:

空間的に異なる極化を持つ装置を分析するためのマトリックス・フーリエ光学を導入する.
任意の平行極化分析のためのメタ表面格子を設計し,実証する.
コンパクトでシングルショットのストークス型ポラライゼーションカメラです

主な方法:

フーリエ光学をマトリックスフーリエ光学に拡張する.
メタ表面格子の設計と製造
シングルショットカメラシステムに格子を統合する.

主要な成果:

パラレルポラライゼーション分析を行うメタ表面格子の実証.
完全なストークス極化測定を達成するコンパクトカメラの実現.
移動部品,パターン化されたピクセル,または従来の偏光学の必要性を排除します.

結論:

マトリックス・フーリエ光学は,高度な極化要素を理解するための枠組みを提供します.
メタ表面格子はコンパクトな極化イメージングのための新しいアプローチを提供します.
開発されたシングルショットポラライゼーションカメラは,機械ビジョンと遠隔感知に潜在的応用があります.

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