Tunable microlens based on nanoparticle-induced hybrid alignment liquid crystal

Shung June Hwang, Yi Ming Shieh, Kuo Ren Lin, Shie-Chang Jeng, Hsin Her Yu, Chi Chang Liao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The nanoparticles-induced vertical alignment (NIVA) of the nematic liquid crystals (LC) was proposed to make a tunable liquid-crystal flat microlens with hybrid-aligned nematic (HAN) mode, which was fabricated using micro drop technology. The minute amount of nanoparticle solution was dropped on the selective area, which was surrounded by homogeneous alignment layer. Due to vertical alignment induced by the nanoparticles, the liquid-crystal concave microlens with concentric non-uniform distribution of the refractive index was then formed in the planar LC cell. The divergence effect of this flat lens was observed and its focal length can be electrically controlled at applied voltages.

Original languageEnglish
Title of host publication2008 IEEE PhotonicsGlobal at Singapore, IPGC 2008
DOIs
StatePublished - 1 Dec 2008
Event2008 IEEE PhotonicsGlobal at Singapore, IPGC 2008 - Singapore, Singapore
Duration: 8 Dec 200811 Dec 2008

Publication series

Name2008 IEEE PhotonicsGlobal at Singapore, IPGC 2008

Conference

Conference2008 IEEE PhotonicsGlobal at Singapore, IPGC 2008
CountrySingapore
CitySingapore
Period8/12/0811/12/08

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