Influence of hard-edge aperture on the spectral switch of polychromatic vector beams

ZHAO Guang-pu; L&#220; Bai-da

Starting from the polarization matrix and propagation equation of the cross-spectral density matrix,a detailed study of the influence of hard-edge aperture on the spectral switch of polychromatic vector Gaussian-Schell model beams is performed.It is shown that before inserting a polarizer the transition height Δ of the spectral switch decreases,the minimum Smin and the critical position zc/z0 increase as the truncation parameter δ increases.After inserting the polarizer,the spectral switch varies with the truncation parameter δ in a similar way as the case without the polarizer.However,the polarization angle θ affects the range of the truncation parameter δ at which the spectral switch appears.

Corresponding author: LÜ Bai-da, badalu@scu.edu.cn

1. Institute of Optoelectronic Information, Yibin University, Yibin 644007, China;

2. Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China

Received Date: 2004-11-29

Accepted Date: 2005-05-19

Available Online: 2006-03-25

Abstract: Starting from the polarization matrix and propagation equation of the cross-spectral density matrix,a detailed study of the influence of hard-edge aperture on the spectral switch of polychromatic vector Gaussian-Schell model beams is performed.It is shown that before inserting a polarizer the transition height Δ of the spectral switch decreases,the minimum Smin and the critical position zc/z0 increase as the truncation parameter δ increases.After inserting the polarizer,the spectral switch varies with the truncation parameter δ in a similar way as the case without the polarizer.However,the polarization angle θ affects the range of the truncation parameter δ at which the spectral switch appears.

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Reference (11)

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Influence of hard-edge aperture on the spectral switch of polychromatic vector beams

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References

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