Optimal period for diffraction gratings recorded in polymer dispersed liquid crystals

被引：3

作者：

Aslanyan, A. ^{[1
]}

Galstyan, A. ^{[1
]}

机构：

[1] Yerevan State Univ, Dept Phys, Yerevan 375049, Armenia

来源：

OPTO-ELECTRONICS REVIEW | 2007年 / 15卷 / 01期

关键词：

liquid crystal; polymer; grating; diffraction; NONLOCAL DIFFUSION-MODEL; PHOTOPOLYMERS;

D O I：

10.2478/s11772-006-0058-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

New diffusion model of recording diffraction gratings in the media of PDLC is described in which besides diffusion of monomer molecules also diffusion of polymer molecules and non-locality of diffusion coefficient are taken into account. It lets us to explain why diffraction efficiency is low for low and high values of intensities of grating recording beam. With the considered model, we have theoretically got optimal period for grating recording.

引用

页码：66 / 70

页数：5

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