The laser-induced holographic gratings in the azo-dye-doped liquid crystals have been investigated by changing the temperature, and the concentration of the sample, the intensity of the two writing beams, and the polarization of probe beams. The cw Nd:YAG laser has been employed as the writing beams and the cw He-Ne laser has been employed as a real-time probe beam to detect the first order diffraction singals. The gratings are the results of photo-isomerization of azo dye and the structure alignment of liquid crystals. The model has been established to explain the first order diffraction signals, the mechanism of gratings formation and the temperature dependence.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0712104-103601 |
| Date | 12 July 2004 |
| Creators | Wu, Chie-chang |
| Contributors | I-Min Jiang, Der-Jun Jang, Chie-Tong Kuo, Dong-Po Wang, Tsai, Ming-Shan |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0712104-103601 |
| Rights | off_campus_withheld, Copyright information available at source archive |
Page generated in 0.0069 seconds