Open AccessDirecting light with liquid crystal metasurfaces
Author(s) -
M. V. Gorkunov,
I. V. Kasyanova,
В. В. Артемов,
A. V. Mamonova,
A. A. Ezhov,
S. P. Palto
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1461/1/012052
Subject(s) - liquid crystal , diffraction , millisecond , materials science , beam (structure) , optics , parametric statistics , layer (electronics) , polymer , ion , optoelectronics , nanotechnology , chemistry , physics , organic chemistry , statistics , mathematics , astronomy , composite material
Liquid crystal metasurfaces self-assemble on polymer substrates regularly patterned by focused ion beam. Periodic deformations of nematic liquid crystal produce distinct colouring and strong diffraction. Applying AC voltage of 4 V across the liquid crystal layer straightens the nematic, suppresses diffraction and increases direct transmission within sub-millisecond switching times. Multi-parametric optimization of the metasurface design substantially enhances the efficiency of diffraction into a single particular channel.