Holographic Formation of Non-uniform Diffraction Structures by Arbitrary Polarized Recording Beams in Liquid Crystal-photopolymer Compositions

Статья в журнале

In this work, the theoretical model of non-uniform diffraction structures' holographic formation in liquid crystal-photopolymer (LC-PPM) composite materials with a dye-sensitizer is developed. The model takes into account the arbitrary character of amplitude and phase spatial distributions of recording light field, its arbitrary polarization state and also a non-linearity of the recording process. Two the most common types of liquid crystal-photopolymer composite are investigated: Holographic polymer-dispersed liquid crystals (H-PDLC) and polymer-stabilized liquid crystals (PSLC). Numerical simulations for the most common cases of holographic formation schemes are made. It is shown that due to the photo-induced Freedericksz transition, in the case of arbitrary polarization states of recording light beams, the non-uniform polarization diffraction grating (PDG) is formed in LC-PPM. Numerical simulations' results show that PDG's contribution to the change of the dielectric tensor of the media is comparable with the contribution of the photopolymerization-diffusion process.

Журнал:

Polymers
MDPI (Basel)

Библиографическая запись: Semkin, A. O. Holographic Formation of Non-uniform Diffraction Structures by Arbitrary Polarized Recording Beams in Liquid Crystal-photopolymer Compositions / A. O. Semkin, S. N. Sharangovich. // Polymers, 2019. – Vol. 11. – Sp. Iss. 5. – P. 861. – DOI: 10.3390/polym11050861.

Ключевые слова:

HOLOGRAPHIC POLYMER-DISPERSED LIQUID CRYSTALS POLYMER-STABILIZED LIQUID CRYSTALS HOLOGRAPHY

Индексируется в:

Авторы: Шарангович С. Н., Семкин А. О.

Год издания: 2019

Страницы: 1 - 14

Язык: Английский

DOI: 10.3390/polym11050861