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30‐4: Low‐voltage Driving Liquid Crystal Lens with Precise Control of Pretilt Angles using E‐beam Lithography
Author(s) -
Zhao Chenxiang,
Fan Fan,
Chigrinov Vladimir,
Kwok HoiSing
Publication year - 2016
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.10693
Subject(s) - lithography , materials science , lens (geology) , liquid crystal , optics , electron beam lithography , beam (structure) , voltage , optoelectronics , resist , nanotechnology , physics , engineering , electrical engineering , layer (electronics)
A liquid crystal (LC) lens with precisely controlled pretil angles using E‐beam lithography is introduced in this paper. Pretilt angles are determined by different proportions of vertical and horizontal alignment domains. Our LC lens uses uniform electrodes and cell gap, which simplies the fabrication process. More importantly, it needs low voltage to drive. The focal length can vary from several centimeters to around 1 meter within 10 volts. Lenses with both positive and negtive optical power can be fabricated using our method.