Morphology of reflection holograms formed in situ using polymer-dispersed liquid crystals

被引：39

作者：

Bunning, TJ ^{[1
]}

Natarajan, LV ^{[1
]}

Tondiglia, VP ^{[1
]}

Sutherland, RL ^{[1
]}

Vezie, DL ^{[1
]}

Adams, WW ^{[1
]}

机构：

[1] USAF,WRIGHT LAB,MAT DIRECTORATE,MLPJ,WRIGHT PATTERSON AFB,OH 45433

来源：

POLYMER | 1996年 / 37卷 / 14期

关键词：

reflection grating; hologram; photopolymerization;

D O I：

10.1016/0032-3861(96)89417-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The morphology of a reflection grating formed using a polymer-dispersed liquid crystalline material system is examined using low-voltage high-resolution scanning electron and transmission electron microscopy. The grating is formed by establishing a fringe pattern in the intensity profile of an argon-ion laser line (lambda = 488 nm) leading to a periodic anisotropic cure through the thickness of the film. The in situ, one-step procedure produces periodic layers of polymer- and LC-rich planes lying parallel to the film surface. Droplet diameters are very small (<100 nm) and little coalescence of individual droplets is observed. The grating spacing measured from electron micrographs (153 nm) nearly corresponds to the expected spacing from the observed reflection notch at lambda = 472 nm. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：3147 / 3150

页数：4

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