期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Ultra-broad band supercontinuum produced by terawatt femtosecond laser
1
作者 张伟力 王清月 +2 位作者 邢岐荣 柴路 K.M.Yoo 《Science China Mathematics》 SCIE 1997年第5期534-539,共6页
The characteristics of supercontinuum produced by high-intensity femtosecond pulses were investigated under different interaction lengths, various pump intensities, different pump wavelengths at the fundamental 800 nm... The characteristics of supercontinuum produced by high-intensity femtosecond pulses were investigated under different interaction lengths, various pump intensities, different pump wavelengths at the fundamental 800 nm and its second-harmonic 400 nm. High transfer-efficiency supercontinuum with flat-top in liquid media was produced. As the main nonlinear mechanisms, the effects of self-phase modulation (SPM) and four-photon parametric emission were also investigated. 展开更多
关键词 terawatt femtosecond supercontinuum chirped-pulse amplification.
原文传递
Highly efficient TW multipass Ti:sapphire laser system 被引量:3
2
作者 魏志义 张杰 +3 位作者 夏江帆 冯宝华 张秀兰 邱阳 《Science China Mathematics》 SCIE 2000年第10期1083-1087,共5页
An efficient chirped-pulse amplification, Ti:sapphire laser system, has been developed using mainly domestic components. The gain-narrowing effect has been significantly overcome by shaping spectrum of seeding pulses.... An efficient chirped-pulse amplification, Ti:sapphire laser system, has been developed using mainly domestic components. The gain-narrowing effect has been significantly overcome by shaping spectrum of seeding pulses. With a novel aberration-free stretcher and two stage multi-pass amplifiers, pulses with duration of 25 fs and 36-mJ energy have been obtained at 10 Hz repetition rate, using only less than 290 mJ green Nd: YAG pump energy. This corresponds to a 1.4 TW peak power and 32% main amplification efficiency. The energy stability of the laser systems is better than ± 3% . 展开更多
关键词 terawatts (TW ) femtosecond laser PULSES chirped-pulses amplification Ti:sapphire laser.
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部