Spectra, coherence, and polarization of diffracted electromagnetic Gaussian Schell-model beams

Liuzhan Pan; Chaoliang Ding; Zhiguo Zhao

doi:10.1117/12.841429

17 February 2010 Spectra, coherence, and polarization of diffracted electromagnetic Gaussian Schell-model beams

Liuzhan Pan, Chaoliang Ding, Zhiguo Zhao

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.

Citation Download Citation

Liuzhan Pan, Chaoliang Ding, and 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); https://doi.org/10.1117/12.841429

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