This investigation elucidates a Fresnel lens using a simple approach that is based on a homogeneously aligned liquid crystal (LC) film with a preformed polymer relief pattern. Experimental results demonstrate that the LC Fresnel lens has polarization-dependent and electrically switchable focusing features. The LC lens has the further advantages of a weak operated field (∼1.3 V/μm), and high diffraction efficiency (∼34%).
|頁（從 - 到）||4144-4147|
|期刊||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|出版狀態||Published - 2007 七月 4|
All Science Journal Classification (ASJC) codes
- 工程 (全部)
- 物理與天文學 (全部)