| Original Articles |
|
|
|
|
Spectrum-Induced Changes in Non-Paraxial Property of Ultrashort Pulsed Beam |
| LU Da-Quan;HU Wei;YANG Zhen-Jun;ZHENG Yi-Zhou |
| Laboratory of Light Transmission Optics, South China Normal
University, Guangzhou 510631
|
|
| Cite this article: |
|
LU Da-Quan, HU Wei, YANG Zhen-Jun et al 2003 Chin. Phys. Lett. 20 1729-1732 |
|
|
|
|
Abstract A spatiotemporal non-paraxial correction to the paraxial solution of ultrashort pulsed beam is obtained by using the Fourier transform and the Taylor expansion. By studying the propagation of an isodiffracting pulsed Gaussian beam with different pulse shapes, we find that there are spectrum-induced changes in the non-paraxial propagation of the pulsed beam. We analyse the influence of pulse spectrum on the non-paraxial property of the ultrashort pulsed beam and explain it base on the paraxial approximation condition.
|
| Keywords:
42.25.Bs
42.65.Re
41.20.Jb
|
|
|
Published: 01 October 2003
|
|
| PACS: |
42.25.Bs
|
(Wave propagation, transmission and absorption)
|
| |
42.65.Re
|
(Ultrafast processes; optical pulse generation and pulse compression)
|
| |
41.20.Jb
|
(Electromagnetic wave propagation; radiowave propagation)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
