Abbreviated Journal Title
Appl. Phys. Lett.
MICROLENS; Physics, Applied
An electrically tunable Fresnel zone plate lens is demonstrated using nanoscale polymer-dispersed liquid crystal droplets. In the voltage-off state, the zone plate behaves like a positive lens. The measured diffraction efficiency is close to the theoretical limit and is controllable by voltage. The major advantages of such a Fresnel lens are simple fabrication, large aperture size, polarization independent, and fast switching speed, although the required operating voltage is relatively high.
Applied Physics Letters
Ren, Hongwen; Fan, Yun-Hsing; and Wu, Shin-Tson, "Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals" (2003). Faculty Bibliography 2000s. 3983.