摘要
利用以三阶非线性系数为基础的平面波理论,通过直接解非线性波动方程,研究强场(～10^(14)W/cm^2)作用下,超短脉冲(80fs)在非线性介质中传播所引起的光谱超加宽现象。在忽略色散效应的情况下,得到输出脉冲Stokes和反Stokes展宽的不对称性,并定量地解释了R.L.Fork等人的实验。
Spectral supercontinuum of high intensity ultrashort-pulse propagating in a non linear medium is calculated directly by solving the nonlinear-wave equation based on the cubic nonlinearity. When the dispersive effect and the steepening effect are excluded, the result yields an asymmetric Stokes-anti-Stokes supercontinuum, which agrees quantitatively with the experiment of Fork et al.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1991年第3期192-196,共5页
Chinese Journal of Lasers
关键词
非线性
激光
脉冲
传输
介质
场强
supereontinuum, nonlinear optics, strong field physios
