Spontaneous formation of polarization diffraction gratings in surface-stabilized cells filled with liquid crystal in the modulated nematic phase

被引：3

作者：

Ali, Muhammad ^{[1
,2
]}

Vaupotic, Natasa ^{[2
,3
]}

Majewski, Pawel W. ^{[1
]}

Gorecka, Ewa ^{[1
]}

Imrie, Corrie ^{[4
]}

Pociecha, Damian ^{[1
]}

机构：

[1] Univ Warsaw, Fac Chem, Ul Zwirki & Wigury 101, PL-02089 Warsaw, Poland

[2] Univ Maribor, Fac Nat Sci & Math, Dept Phys, Koroska 160, Maribor 2000, Slovenia

[3] Jozef Stefan Inst, Jamova 39, Ljubljana 1000, Slovenia

[4] Univ Aberdeen, Kings Coll, Dept Chem, Aberdeen AB24 3UE, Scotland

来源：

EMERGING LIQUID CRYSTAL TECHNOLOGIES XIV | 2019年 / 10941卷

关键词：

Liquid crystals; modulated nematic phase; polarization diffraction gratings;

D O I：

10.1117/12.2505480

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Liquid crystals in the twist bend modulated nematic phase spontaneously form gratings when filled in planar cells. Such gratings transform the polarization properties of the incident light and as such can be used as low cost switchers because no surface patterning is required to obtain the grating. In addition, the polarization properties of the second order diffraction peak, combined with a theoretical modelling, can be used to determine the spatial variation of the optical axis in the cell. In this paper, we report on a generalized behavior of the polarization of the diffracted light in cells of various thicknesses and for different twist bend nematic materials.

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页数：10

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