Switchable Fresnel lens based on micropatterned alignment.


In this Letter we disclose a method to fabricate a liquid crystal (LC) Fresnel zone lens (FZL) with higher efficiency. The LCFZL, based on alternate twisted nematic (TN) and planar aligned (PA) regions, has been prepared by means of a two-step photo-alignment process. The FZL profile for both optical regimes, i.e., in TN and PA alignment domains, generates… (More)
DOI: 10.1364/OL.38.001775


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@article{Wang2013SwitchableFL, title={Switchable Fresnel lens based on micropatterned alignment.}, author={Xiao-Qian Wang and Abhishek K Srivastava and Vladimir G. Chigrinov and Hoi-Sing Kwok}, journal={Optics letters}, year={2013}, volume={38 11}, pages={1775-7} }