| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1539367 | Optics Communications | 2010 | 6 Pages |
Abstract
This work studies the biphotonic effect in samples that are cholesteric liquid crystals (CLCs) doped with azo-C5. The experimental results show that the photo-isomerization of azo-C5 not only changes the clearing point of the sample, but also shifts the reflection band that is associated with the planar texture. Additionally, azo dye-doped CLCs (DDCLCs) have bi-stable or tri-stable states, as determined by the ambient temperature. Photo-switching between these bi-stable/tri-stable states is systematically studied. The result indicates that photo-addressing one of these states (planar, focal conic, and isotropic states) using a low- or high-intensity Ar+ laser beam is feasible. The results thus obtained are used to fabricate a photo-rewritable DDCLC display.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
San-Yi Huang, Yi-Shin Chen, Hung-Chang Jau, Ming-Shian Li, Jui-Hsiang Liu, Po-Chih Yang, Andy Ying-Guey Fuh,