Spectral properties of spatially and spectrally partially coherent cosh-Gaussian pulsed beams focused by an aperture lens |
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Authors: | Dongbing Liu |
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Institution: | Institute of Laser Physics and Chemistry, Sichuan University, Chengdu, Sichuan 610064, China |
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Abstract: | The analytical expression for the spectrum of spatially and spectrally partially coherent cosh-Gaussian pulsed (ChGP) beams focused by an aperture lens is derived and used to study their spectral properties at the focal plane and on the axis. The effect of the truncation parameter, spatial correlation parameter, decentered parameter and temporal coherence length on the spectral shifts and spectral switches of spatially and spectrally partially coherent ChGP beams is stressed. The results are illustrated numerically and interpreted physically. |
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Keywords: | Spatially and spectrally partially coherent cosh-Gaussian pulsed beam Spectral switch Aperture lens |
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