Light-induced orientation transition in nematic liquid crystalline polymer


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Abstract

Optical orientation in transparent nematic liquid crystalline polymer (NLCP) was observed for the first time. In NLCP with dye dopant, the light-induced second-order orientation transition being an analogue of the Freedericksz transition in low-frequency fields is found. The transition threshold is ~10 μW which is lower than the threshold of the light-induced Freedericksz transition in low-molecular nematics by four orders ofmagnitude and is lower than the characteristic value for low-molecular nematics with dye dopant by two orders of magnitude.

About the authors

I. A. Budagovsky

Lebedev Physical Institute

Email: zolotko@lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991

A. S. Zolot’ko

Lebedev Physical Institute

Author for correspondence.
Email: zolotko@lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991

V. N. Ochkin

Lebedev Physical Institute

Email: zolotko@lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991

S. A. Shvetsov

Lebedev Physical Institute; Moscow Institute of Physics and Technology

Email: zolotko@lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991; Institutskii per. 9, Dolgoprudnyi, Moscow oblast, 141700

A. Yu. Bobrovsky

Faculty of Chemistry

Email: zolotko@lebedev.ru
Russian Federation, Moscow, 119991

N. I. Boiko

Faculty of Chemistry

Email: zolotko@lebedev.ru
Russian Federation, Moscow, 119991

V. P. Shibaev

Faculty of Chemistry

Email: zolotko@lebedev.ru
Russian Federation, Moscow, 119991

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