|Author's Email Address
||This thesis had been viewed 5569 times. Download 134 times.|
|Type of Document
||Surface Plasmon Assisted Transient Transmission Effect in Photosensitive Liquid Crystal Cell|
|Date of Defense
||Surface plasmon resonance
||Surface plasmon resonance (SPR) is sensitive to the surface structure, metal properties and refractive index of the upper layer.|
Liquid crystal is anisotropic material. In optics, the refractive index varies with the direction of the light entering the liquid crystal. 5CB liquid crystal doped with 1205 azo-dyes is used in the experiment. The azo-LC layer could be switched between isotropic and nematic phases by irradiating with UV laser or green laser. Liquid crystal micro domains (formed between isotropic and nematic phases) were generated during phase transition process. These micro domains caused Mie scattering.
In this research, we injected the azo-LC into a liquid crystal cell with aluminum metallic grating, and used 1205 azo-LC as a switch to control the coupled of surface plasmon resonance. During the phase change process of azo-LC, the micro particles appears in the azo-LC layer. And this micro particles caused Mie scattering effect to the incident light. The Mie scattering effect to the incident light provides much horizontal k-vectors on metal surface and increases the probability for the light to couple the surface plasmon resonance.
||Shie-Chang Jeng - chair|
Shiuan-Yeh Chen - co-chair
Yu-Ju Hung - advisor
Indicate in-campus at 2 year and off-campus access at 2 year.|
|Date of Submission