Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals
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. (C) 2003 American Institute of Physics.
Applied Physics Letters
"Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals" (2003). Faculty Bibliography 2000s. 3983.