The pulse envelope we obtained is a hyperbolic secant function of time. 所得脉冲包络为时间的双曲正割(SECH)函数。
The RMS pulse width should be used when the subcyle hyperbolic secant pulses is described. 所以描述亚周期双曲正割(SECH)脉冲时应该使用更加严格的均方根脉冲宽度。
The sign of the chirp also affects the spatial intensity distribution of the ultrashort hyperbolic secant pulsed beams. 啁啾系数的大小和符号对双曲正割(SECH)脉冲光束空间强度的分布有不同的影响。
The variational approach is used in discussing the propagation properties of 1 + 1 dimensional hyperbolic secant shaped optical beam in strongly nonlocal nonlinear media, a set of optical beam approximate evolution equations, the beam width approximate evolution law and a critical power are obtained. 运用变分法研究了1+1维双曲正割(SECH)型光束在强非局域非线性介质中的传输特性,得到了光束各参量的近似演化方程以及束宽的近似演化规律和一个临界功率。
Starting from paraxial wave equation, analytical propagation expressions of hyperbolic secant pulsed beams with narrowband and broadband are derived. 从近轴波动方程出发推导了窄带和宽带双曲正割(SECH)脉冲光束的解析传输公式。