【摘 要】
：
Based on Kukhtarevs equations, we derive the formulae of intensity-coupling coefficient, the phase-coupling coefficient and the group velocity at large modulati
【机 构】
：
Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001
论文部分内容阅读
Based on Kukhtarevs equations, we derive the formulae of intensity-coupling coefficient, the phase-coupling coefficient and the group velocity at large modulation depth. It is theoretically shown that the signal beam can be amplified after passing through the photorefractive crystal and the group velocity reduced to m/s, even cm/s. Meanwhile, we also analyse the influence of the thermal excitation rate and the large signal effects on optical amplification and reduction of light propagation in photorefractive two-wave mixing.
其他文献
A laser phase determination method and a transfer function that includes a proportional term of a measured photoelectron energy spectrum are presented to direct
本刊讯 就文化和旅游部官网公告,自8月1日起暂停47个城市大陆居民赴台个人游试点,马晓光1日应询表示,大陆居民赴台个人游试点工作于2011年启动,是在两岸关系和平发展大背景下
各位嘉宾,各位朋友:rn大家上午好!rn很高兴与两岸嘉宾共同出席第十七届冀台经济合作洽谈会.冀台会迄今已成功举办了16届,成为冀台两地经济文化交流合作的重要平台,为推动两岸
The quark delocalization colour screening model provides an alteative approach for the NN intermediate range attraction, which is attributed to the σ meson exc
We examine the effects of driving Geld linewidth on a one-atom dressed state laser. Unexpectedly, the linewidth leads to anomalous effects on the cavity Geld. T
“谢谢大家的帮助,我回去以后,一定要把寻根成功的消息告诉其他宗亲,下一次,我会带更多宗亲到大陆寻根谒祖!”今年6月,在泉州市台港澳办与相关族谱专家的帮助下,台胞张宇讚终
Using fully incoherent white light emitted from an incandescent lamp and amplitude mask, we experimentally investigate the influence of several factors on the f
We present the results of point-contact spectroscopy measurements on high-quality epitaxial MgB2 thin films with injected current along the c-axis. The temperat
Electron plasma induced by a focused femtosecond pulse (130 fs, 800 nm) in dielectric materials (Soda Lime glass, K9 glass, and SiO2 crystal) is investigated by
本刊讯 就民进党主席卓荣泰12日有关涉港言论,马晓光8月13日应询表示,卓荣泰其人此番大放厥词,企图对香港近期事态推波助澜,搞乱香港;企图通过污蔑攻击大陆、诋毁“一国两制