Wide-band tunable photonic bandgaps based on nematic-refilling cholesteric liquid crystal polymer template samples

Jia De Lin, Chung Liang Chu, Hsin Yu Lin, Borwen You, Chi Ting Horng, Shuan Yu Huang, Ting Shan Mo, Chia Yi Huang, Chia Rong Lee

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

This work first reports wide-band tunable photonic bandgap (PBG) devices based on nematic-refilling cholesteric liquid crystal polymer template samples. By changing the type of refilling nematic liquid crystal (NLC) and sample cell gap, the PBG features of the template sample can be crucially influenced. A physical model related with the NLC infiltration into the template nanopores based on capillary action is used to qualitatively explain the tunable PBG features of the refilling template samples. In addition, a nearly full white (480 nm - 720 nm) spatially tunable PBG device based on a NLC-refilling template wedge cell is demonstrated.

Original languageEnglish
Pages (from-to)1419-1430
Number of pages12
JournalOptical Materials Express
Volume5
Issue number6
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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