中国物理B ›› 2003, Vol. 12 ›› Issue (8): 879-885.doi: 10.1088/1009-1963/12/8/311
刘志军1, 吕百达2
Liu Zhi-Jun (刘志军)a, Lü Bai-Da (吕百达)ab
摘要: Starting from the Rayleigh diffraction integral, the propagation equation of ultrashort pulsed beams in dispersive media is derived without making the paraxial approximation and slowly varying envelope approximation (SVEA). The spatiotemporal properties of ultrashort pulsed beams in dispersive media, such as spectrum redshifting, narrowing and pulse distortion are illustrated with pulsed Gaussian beams. It is stressed that the "antibeam" behaviour of ultrashort pulsed beams can be avoided, if a suitable truncation function is chosen.
中图分类号: (Ultrafast processes; optical pulse generation and pulse compression)