2) small-scale self-focusing
小尺度自聚焦
1.
Experimental research of small-scale self-focusing of ultrashort pulse with spatial modulation;
超短脉冲激光空间调制下小尺度自聚焦的实验研究
2.
Based on the propagation of angular spectrum and Bespalov-Talanov small-scale self-focusing theory,the expression for hot image intensity is obtained without thin medium approximation,and verified by numerical simulation.
基于角谱传输和Bespalov-Talanov小尺度自聚焦理论,在不作薄介质近似情况下得到了热像光强表达式,并用数值模拟结果进行了验证。
3) small scale self focusing
小尺度自聚焦
1.
A comparison of different properties of small scale self focusing intense laser in two media is analyzed.
通过对比分析介质的增益和损耗对高功率激光的小尺度自聚焦行为的不同影响 ,得出了截止频率、最快增长频率、纹波的积分指数增益等特性随各参量的变化 ,求得了最大和最小的纹波增长的距离 ,以及介质的增益和损耗特性对成丝距离的影响。
2.
The differential equation ,discribing the small scale self focusing effects caused by nonlinear growth of perturbation when laser beams are propagating in nonlinear media with gain(or loss), have been deduced from nonlinear propagational equation.
由光束在吸收 (增益 )介质中传输的非线性近轴波方程 ,推导出了光束在两种介质中传输时 ,由于小尺度调制的非线性增长所引起的小尺度自聚焦所满足的微分方程。
5) self-focusing
自聚焦效应
1.
By analyzing the critical value of thermal blooming and self -focusing, it is shown that the critical value of self-focusing is about five magnitude larger than thermal blooming s in the same atmospheric conditions.
通过分析激光在大气中传输所产生热晕效应和自聚焦效应的临界功率PTB和PK表明,在同样大气条件下,产生自聚焦的临界功率PK比产生热晕的临界功率PTB大约高5个量级。
6) small scalar effect
小尺度效应
1.
The small scalar effect is considered when the relation of stress and strain is decided.
用分子动力学的方法来模拟金属纳米丝的拉伸实验,得到纳米丝屈服前每一位移步的应力、应变值;基于非局部弹性理论,在考虑小尺度效应影响的情况下,建立了纳米丝的应力-应变关系。
补充资料：冲击波聚焦效应