Spectral switches of Gaussian pulsed beam passing through linear circular apertures array

yao zhoushi; li xiaofeng; hu wei; yang yuanjie

Volume 22 Issue 08

Jul. 2010

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yao zhoushi, li xiaofeng, hu wei, et al. Spectral switches of Gaussian pulsed beam passing through linear circular apertures array[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

yao zhoushi, li xiaofeng, hu wei, et al. Spectral switches of Gaussian pulsed beam passing through linear circular apertures array[J]. High Power Laser and Particle Beams, 2010, 22.

yao zhoushi, li xiaofeng, hu wei, et al. Spectral switches of Gaussian pulsed beam passing through linear circular apertures array[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

yao zhoushi, li xiaofeng, hu wei, et al. Spectral switches of Gaussian pulsed beam passing through linear circular apertures array[J]. High Power Laser and Particle Beams, 2010, 22.

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Spectral switches of Gaussian pulsed beam passing through linear circular apertures array

1.
Institute of Astronautics and Aeronautics,University of Electronic Science and Technology of China,Chengdu 610054,China

Publish Date: 2010-07-12

Abstract

Abstract

The far-field anomalous spectral behaviors of a Gaussian pulsed beam passing through a linear circular apertures array are studied. By expanding a hard aperture function into a finite sum of complex Gaussian functions and starting from the Fresnel diffraction integral, the approximate analytical expression for the spectral intensity of a space-time-dependent Gaussian pulsed beam passing through a linear circular apertures array is derived. The red and blue shifts and the spectral intensity distribution are studied and illustrated with numerical calculations. It is shown that there exist spectral switches when the observation position is at the right points.
- spectral switch,
- gaussian pulsed beam,
- apertures array,
- fresnel formula,
- anomalous spectral

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