Wavelength-tuneable laser emission from a dye-doped achiral nematic liquid crystal dispersed into a chiral polymer scaffold

被引：3

作者：

Wood, Simon M. ^{[1
]}

Elston, Steve J. ^{[1
]}

Morris, Stephen M. ^{[1
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Parks Rd, Oxford OX1 3PJ, England

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2016年 / 632卷 / 01期

关键词：

chiral nematic liquid crystals; lasers; reactive mesogens;

D O I：

10.1080/15421406.2016.1185587

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We compare the emission characteristics of a thin-film liquid crystal (LC) laser created using a polymer-stabilized, dye-doped chiral nematic LC to that of an LC laser that was fabricated using an achiral, dye-doped nematic refilled into a chiral polymer scaffold that was templated from the same chiral nematic host. Both lasers exhibit wavelength tuning upon the application of an external electric field. However, for the templated sample, tuning is found to occur across a broader wavelength-range for the same electric field amplitude. We discuss the benefits of the templated approach and how it can be used to circumvent dye bleaching that may occur during photo-polymerisation.

引用

页码：89 / 96

页数：8

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