Self-­Regulated Smectic Emulsion with Switchable Lasing Application

Title
Self-­Regulated Smectic Emulsion with Switchable Lasing Application
Authors
이원석김대석Teresa Lopez-Leon윤동기
Issue Date
2019-12
Publisher
Small
Citation
VOL 15, NO 49, 1903818
Abstract
A structurally reversible smectic liquid crystal (LC) emulsion made of semifluorinated rod-type molecules in silicon oil, which is controlled by simple heating and cooling, is presented. Without adding any kind of additives, such as surfactants, polymers or emulsifiers, and without using any special tools, such as microfluidics or gas bubbling, the LC molecules spontaneously form monodisperse spherical and myelin-like structures upon cooling from the isotropic temperature. The LC emulsion can easily trap guest materials, providing a platform for repeatable and reliable switchable emulsification. For example, this interesting system enables the realization of an on– off lasing system by confining fluorescent dyes in the LC droplets.
URI
http://pubs.kist.re.kr/handle/201004/70991
ISSN
1613-6810
Appears in Collections:
KIST Publication > Article
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