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Proceedings Paper

Spectral invariance propagation of ultrashort laser pulses and its changes by aperture
Author(s): Zhongyang Wang; Jian Deng; Zhizhan Xu
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Paper Abstract

The condition of spectral invariance propagation of the spatially completely coherent light sources is studied from the diffraction theory. It is found that if the field distribution of light sources depends on frequency only through the variable (√kx,√ky), the spectrum of light will remain invariant on propagation. This scaling law may be generalized to the stationary light sources. But it can be destroyed by aperture. The spectral shifts of few cycle ultrashort pulses from aperture diffraction and a laser resonator with hard aperture are found and analyzed in detail.

Paper Details

Date Published: 23 October 2001
PDF: 8 pages
Proc. SPIE 4447, Surface Scattering and Diffraction for Advanced Metrology, (23 October 2001); doi: 10.1117/12.446729
Show Author Affiliations
Zhongyang Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Jian Deng, Shanghai Institute of Optics and Fine Mechanics (China)
Zhizhan Xu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4447:
Surface Scattering and Diffraction for Advanced Metrology
Zu-Han Gu; Alexei A. Maradudin, Editor(s)

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