Phase separation and pattern instability of laser-induced polymerization in liquid-crystal-monomer mixtures

Chandroth P. Jisha, Kuei Chu Hsu, Yuan Yao Lin, Ja Hon Lin, Kai Ping Chuang, Chao Yi Tai, Ray Kuang Lee

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Directly written by a ultra-short femto-second laser pulse, we report the phase separation and pattern formation induced by polymerization in a liquid-crystal-monomer mixture. By varying the scanning speed of optical fields along a line, pattern transitions of photon-induced polymer structures are illustrated in shapes of double-humped, singlehumped, and broken stripes. The optical microscope images taken in experiments are in a good agreement with numerical simulations based on a modified set of coupled 2+1 dimensional diffusion equations. The demonstration in this work provides a step for controlling phase separation morphologies as well as transferring patterns in polymer-dispersed liquid crystals.

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主出版物標題CLEO
主出版物子標題Science and Innovations, CLEO_SI 2012
發行者Optical Society of America (OSA)
頁面CTU1J.2
ISBN(列印)9781557529435
DOIs
出版狀態已出版 - 2012
事件CLEO: Science and Innovations, CLEO_SI 2012 - San Jose, CA, United States
持續時間: 6 5月 201211 5月 2012

出版系列

名字CLEO: Science and Innovations, CLEO_SI 2012

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???event.eventtypes.event.conference???CLEO: Science and Innovations, CLEO_SI 2012
國家/地區United States
城市San Jose, CA
期間6/05/1211/05/12

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