標題: UNIQUE BEHAVIOR OF THICKNESS DEPENDENCE IN THE NONLINEAR WAVE-MIXING PROCESS WITH A NEMATIC THIN-FILM
作者: KUO, CL
WEI, JG
CHEN, SH
交大名義發表
光電工程學系
National Chiao Tung University
Department of Photonics
公開日期: 15-四月-1993
摘要: The dependence of the optimal electric biasing field and the diffraction efficiency on the thickness of the nematic thin film through the degenerate four-wave-mixing process is investigated. For relatively low optical pumps, the optimal bias monotonically increases with thickness, while the corresponding diffraction efficiency increases at first and then decays for a thickness even less than 150 mum, which is well within the phase-matching regime. For stronger pumps, the optimal bias can be doubly valued, and the curve of optimal bias versus thickness shows a closed loop. This behavior is unique to liquid crystals. The main mechanism is due to the twist effect of molecular orientation in addition to the scattering loss. Both the numerical and experimental results show these peculiar phenomena.
URI: http://hdl.handle.net/11536/3047
ISSN: 0146-9592
期刊: OPTICS LETTERS
Volume: 18
Issue: 8
起始頁: 592
結束頁: 594
顯示於類別:期刊論文


文件中的檔案:

  1. A1993KX23100010.pdf