Effect of cross-polarization of electromagnetic source on the degree of polarization of generated beam

✍ Scribed by Yu Xin; Yanru Chen; Qi Zhao; Muchun Zhou

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 116 KB
• Volume: 281
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2007.12.011

✦ Synopsis

In this paper we study the degree of cross-polarization of a beam-like field whose cross-spectral density matrix is symmetric with respect to the permutation of its spatial arguments. Formulas were derived expressing the degree of cross-polarization in terms of the generalized Stokes parameters. With the help of an uniformly polarized quasi-homogeneous model source, the effect of degree of cross-polarization of a source on the degree of polarization of the radiated beam was demonstrated, that, two sources with same spectral degrees of coherence and polarization but with different degrees of cross-polarization can generate beams that have different spectral degrees of polarization in the far field.