Electrically switchable liquid crystal Fresnel lens using UV-modified alignment film
| dc.citation.epage | 26331 | en_US |
| dc.citation.issue | 25 | en_US |
| dc.citation.spage | 26325 | en_US |
| dc.citation.volume | 18 | en_US |
| dc.citation.woscount | 11 | |
| dc.contributor.author | Jeng, Shie-Chang | en_US |
| dc.contributor.author | Hwang, Shug-June | en_US |
| dc.contributor.author | Horng, Jing-Shyang | en_US |
| dc.contributor.author | Lin, Kuo-Ren | en_US |
| dc.contributor.department | 影像與生醫光電研究所 | zh_TW |
| dc.contributor.department | Institute of Imaging and Biomedical Photonics | en_US |
| dc.date.accessioned | 2014-12-08T15:38:18Z | |
| dc.date.available | 2014-12-08T15:38:18Z | |
| dc.date.issued | 2010-12-06 | en_US |
| dc.description.abstract | A simple method to make a switchable liquid crystal (LC) Fresnel lens with high diffraction efficiency and a low driving voltage was proposed based on the photo-induced surface modification of the vertical alignment layer. UV illumination alters the pretilt angle of alignment layers, a Fresnel zone-distribution hybrid alignment in the homeotropic LC cell can be straightforwardly achieved through UV exposure, yielding a concentric structure of the Fresnel phase LC lens. A remarkable diffraction efficiency of similar to 31.4%, close to the measured diffraction efficiency of the used Fresnel-zone-plate mask of 32%, was detected using a linearly polarized incident beam. (C)2010 Optical Society of America | en_US |
| dc.identifier.doi | 10.1364/OE.18.026325 | en_US |
| dc.identifier.issn | 1094-4087 | en_US |
| dc.identifier.journal | OPTICS EXPRESS | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1364/OE.18.026325 | en_US |
| dc.identifier.uri | https://ir.lib.nycu.edu.tw/handle/11536/26239 | |
| dc.identifier.wosnumber | WOS:000285749500090 | |
| dc.language.iso | en_US | en_US |
| dc.title | Electrically switchable liquid crystal Fresnel lens using UV-modified alignment film | en_US |
| dc.type | Article | en_US |