Correlation-induced changes in the degree of polarization, the degree of coherence, and the spectrum of random electromagnetic beams on propagation

2003 ◽  
Vol 28 (13) ◽  
pp. 1078 ◽  
Author(s):  
Emil Wolf
Keyword(s):  
Degree Of Polarization ◽  
Degree Of Coherence ◽  
Induced Changes ◽  
Electromagnetic Beams

scholarly journals Propagation features of a class of beams radiated from pseudo-Schell model vectorial sources

2021 ◽  
Vol 255 ◽  
pp. 12012
Author(s):  
Rosario Martínez-Herrero ◽  
Gemma Piquero ◽  
Juan Carlos González de Sande ◽  
Massimo Santarsiero ◽  
Franco Gori
Keyword(s):  
The Other ◽  
Degree Of Polarization ◽  
Polarization Pattern ◽  
Spectral Density Matrix ◽  
Degree Of Coherence ◽  
Coherent Sources ◽  
Cross Spectral Density ◽  
Free Parameters ◽  
Beam Section ◽  
The Difference

Pseudo Schell-model sources were introduced and studied in the scalar domain as those partially coherent sources that present a degree of coherence depending on the difference between the radial coordinates of the two considered points. In this work we study the propagation features of a class of beams radiated from sources of this kind, but endowed with a vectorial nature. The polarization pattern and the degree of polarization are not uniform across the beam section but remain invariant upon free paraxial propagation. On the other hand, their coherence and irradiance features are also non-uniform but in this case they change at each z-plane. The field characteristics can be varied on acting on the free parameters of the cross-spectral density matrix of the source.

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