キラルネマティック液晶の螺旋軸の3次元制御
Zhi-gang Zheng1, Yannian Li1, Hari Krishna Bisoyi1
1Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, USA.
Nature
|March 8, 2016
まとめ
研究者は,キラルネマティック液晶 (CLC) の螺旋軸の光活性化3D制御を実証し,熱的なリラックスなしに可逆ビーム・ステアリングとハンドネス・インバーションを可能にします. これは光学装置の新たな可能性をもたらします
科学分野:
- 材料科学
- 光学について
- 液体結晶
背景:
- チラルのネマティック液晶 (CLC) は,ディスプレイ,フィルター,レーザーのアプリケーションを持つ自己組織化された螺旋状の上部構造です.
- CLCの螺旋軸に対するダイナミック,リモート,および3D制御を達成することは困難であり,しばしば電気場または表面の修正を必要とする.
研究 の 目的:
- 光刺激のみを用いたCLCの螺旋軸の3次元操作とハンドネス逆転の方法を開発する.
- このCLC操作技術を使用して,光で活性化され,広域,可逆の二次元ビーム・ステアリングを実証する.
主な方法:
- CLCで螺旋軸の3D操作を達成するために光刺激を使用した.
- 螺旋軸の垂直から平行への連続的な反転を観察し,その後に平面内回転を行う.
- 二層のCLC細胞で反射状態 (2D,1D,オフ) の可逆光制御を調査した.
主要な成果:
- 螺旋軸の3D操作とCLCの操作を光だけで成功しました.
- 複合的な光学システムを模倣した 2D ビーム・ステアリング
- 二重層の細胞で異なる屈折状態の間の可逆光学制御を,熱的リラクゼーションなしに示した.
結論:
- 光刺激は,CLCの螺旋軸の3D制御とハンドネス逆転のための新しい効果的な方法を提供します.
- この技術により,可逆で光で活性化されたビーム・ステアリングと分散状態制御が可能になり,既存の方法よりも利点があります.
- 熱的なリラックスがないことにより,任意の中間光活性化状態から正確な制御と可逆性を可能にします.
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