17 February 2010 Spectra, coherence, and polarization of diffracted electromagnetic Gaussian Schell-model beams
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Proceedings Volume 7579, Laser Resonators and Beam Control XII; 75791I (2010) https://doi.org/10.1117/12.841429
Event: SPIE LASE, 2010, San Francisco, California, United States
Abstract
An approximate analytical formula for the cross-spectral density matrix of the electric field of diffracted electromagnetic Gaussian Schell-model (EGSM) beams is derived by using the method of the complex Gaussian function expansion. We show both analytically and by numerical examples the aperture effects of spectra, coherence and polarization of electromagnetic Gaussian Schell-model beams. It is shown that the larger the truncation parameter the spectral degree of polarization becomes non-uniform on propagation, the spectral density shape is more tightly. The spectral degree of coherence oscillates, and the larger the value of truncation parameter the spectral degree of coherence exhibits rapid oscillation.
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Liuzhan Pan, Liuzhan Pan, Chaoliang Ding, Chaoliang Ding, Zhiguo Zhao, Zhiguo Zhao, } "Spectra, coherence, and polarization of diffracted electromagnetic Gaussian Schell-model beams", Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75791I (17 February 2010); doi: 10.1117/12.841429; https://doi.org/10.1117/12.841429
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