標題: | Manipulating terahertz wave by a magnetically tunable liquid crystal phase grating |
作者: | Lin, Chia-Jen Li, Yu-Tai Hsieh, Cho-Fan Pan, Ru-Pin Pan, Ci-Ling 電子物理學系 光電工程學系 Department of Electrophysics Department of Photonics |
公開日期: | 3-三月-2008 |
摘要: | This investigation demonstrates the feasibility of a magnetically tunable liquid crystal phase grating for the terahertz wave. The phase grating can be used as a beam splitter. The ratio of the zeroth and first-order diffracted THz-beams (0.3 THz) polarized in a direction perpendicular to that of the grooves of the grating can be tuned from 4:1 to 1:2. When the THz wave is polarized in any other direction, this device can be operated as a polarizing beam splitter. |
URI: | http://dx.doi.org/10.1364/OE.16.002995 http://hdl.handle.net/11536/9586 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.16.002995 |
期刊: | OPTICS EXPRESS |
Volume: | 16 |
Issue: | 5 |
起始頁: | 2995 |
結束頁: | 3001 |
顯示於類別: | 期刊論文 |