1) ultra short high intensity laser
超短强激光
1.
A new experiment was carried out for studying the interaction of high intensity laser with microcapillaries by using an ultra short high intensity laser with 45 fs pulse width.
成功地观测了超短强激光作用下不锈钢毛细管和玻璃毛细管的Ｘ射线谱，获得了重复频率为１０Ｈｚ具有较好定向性的Ｘ射线源。
2) ultrashort and ultrahigh laser
超短超强激光
1.
Monte Carlo simulation of Kα source produced by ultrashort and ultrahigh laser interaction with Cu target;
超短超强激光与铜靶相互作用产生Kα源的蒙特卡罗模拟
3) ultra-short and ultra-intense laser
超短超强激光
1.
During the interaction of ultra-short and ultra-intense laser with plasma,application of energetic protons generated by this interaction are proton imaging,compact particle accelerators,diagnosis the interaction of ultra-short and ultra-intense pulse laser with plasma,“fast ignitor”and proton cancer therapy etc.
超短超强激光与等离子体相互作用中得到的高能质子在质子成像、粒子加速、诊断超短超强激光与等离子体相互作用的物理过程、“快点火”和治疗癌症等方面有一定的应用。
2.
Monoenergetic K-alpha x-ray, x-ray laser et al can emit from interaction of ultra-short and ultra-intense laser pulse with matter.
超短超强激光与物质相互作用可以产生单能的K-alpha线辐射、X射线激光辐射等。
5) high intensity ultrashort laser
超短超强激光
1.
The excitation of plasma wake wave and acceleration of electrons after interaction between a high intensity ultrashort laser and underdense plasma using a particle in cell simulation is numerically studied.
应用一维粒子模拟方法（Ｐａｒｔｉｃｌｅ－ｉｎ－Ｃｅｌ）数值研究了超短超强激光（Ｉλ２＞１０１８Ｗμｍ２／ｃｍ２）和稀薄等离子体相互作用后等离子体尾波的产生及其对电子的加速。
2.
The interaction between high intensity ultrashort laser and overdense plasma using a particle in cell simulation is numerically studied.
应用一维粒子模拟方法数值研究了超短超强激光和稠密等离子体的相互作用。
3.
The interaction between high intensity ultrashort laser and underdense plasma is numerically studied by using a particle in cell simulation.
用一维粒子模拟方法（Ｐａｒｔｉｃｌｅ－ｉｎ－Ｃｅｌ）数值研究了超短超强激光（Ｉλ２＞１０１８Ｗμｍ２／ｃｍ２）与稀薄等离子体的相互作用过程。
6) ultrashort intense laser pulse
超短脉冲强激光
1.
Generation of low frequency electromagnetic solitons in plasmas near the critical density by use of an ultrashort intense laser pulse has been studied with a two dimensional (2D) particle in cell simulation code.
用二维粒子模拟程序研究了超短脉冲强激光与等离子体相互作用中局域低频电磁场的产生现象 。
2.
Using the one-dimensional particle-in-cell simulation code, we have studied the generation and redshift of harmonics from overcritical plasma layer irradiated by ultrashort intense laser pulses.
用一维粒子模拟程序研究了超短脉冲强激光与超临界密度等离子体平板作用产生的高次谐波。
补充资料：超短脉冲激光频率转换材料
超短脉冲激光频率转换材料
materials for ultrashort pulses laser frequency conversion
超短脉冲激光频率转换材料materials forultrashort Pulses laser frequeney eonversion用于脉冲宽度从微微秒直到几十毫微微秒激光的频率转换材料。超短脉冲激光具有短的脉宽，较好的模式特性以及高的峰值功率，从而具有很强的非线性性能。经频率转换后，短波的超短脉冲可产生强的光化学反应，是探索微观世界和超高速现象的极为有用的光源。此外，采用薄片倍频材料的超短脉冲倍频，可以作为超短脉冲脉宽测量的一种简便有效的方法，在技术上有实用价值。 对超短脉冲激光频率转换材料的性能主要有以下要求:①高的光损伤闭值。由于超短脉冲的高峰值功率，因而对材料的光损伤阑值提出高的要求，一般要大于GW/cmZ。②相位匹配特性。超短脉冲在空间的尺度短到毫米及几百微米量级，短脉冲波包在材料中以群速度传播。因而，除一般的相速度匹配外，还应满足群速度匹配才能获得较高的能量转换效率。对光学均匀材料，要求基频和倍频波的折射率色散小，才能获得较好的群速度匹配。对I类匹配，群速度要求稍低;对n类匹配要求太苛刻，很难应用。由于群速度失配存在，一般器件只取亚毫米的厚度。过长的光程于能量转换无补，反而引入脉宽的展宽以及能量的损耗。③透过波段。首先要求对参与频率转换的激光波长有高的透过率。对超短脉冲应用场合，材料应有更短的紫外吸收边。其原因是吸收边会增加材料的折射率色散;远离使用波长的吸收边，可使材料获得较好的群速度匹配。 钱激光超短脉冲频率转换的常用材料是磷酸二氢钾(KDP)类晶体。此外，新开发的三硼酸锉(LBO)晶体，由于其高的抗光损伤阑值、好的紫外透过率以及小的色散，也是好的超短脉冲频率转换用材料。有机晶体精氨酸磷酸盐(LAP)和氛化精氨酸磷酸盐(D一LAP)也可用作超短脉冲频率转换用材料。 (邵宗书)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条