TY - JOUR

T1 - Realizability conditions for electromagnetic Gaussian Schell-model sources

AU - Roychowdhury, Hema

AU - Korotkova, Olga

N1 - Funding Information:
The research was supported by the US Air Force Office of Scientific Research under Grant No. F49260-03-1-0138, by the Engineering Research Program of the Office of Basic Energy Sciences at the US Department of Energy under Grant No. DE-FG02-2ER45992, and by the Air Force Research Laboratory (AFRC) under contract FA 9451-04-C-0296.

PY - 2005/5/15

Y1 - 2005/5/15

N2 - The electromagnetic Gaussian Schell-model (EGSM) beam is the simplest analytical model of a random electromagnetic beam. The model can be successfully used in studies of spectral, polarization and coherence properties of random electromagnetic beams on propagation in free space or in any linear medium, deterministic or random. The most general type of source which produces electromagnetic Gaussian Schell-model beam is characterized by 10 parameters. Using properties of the cross-spectral density matrix of such a beam, we derive necessary and sufficient conditions which the parameters of the source must satisfy in order to generate a physically realizable beam of this type. The conditions provide certain constraints for synthesis, simulations and any application of such beams.

AB - The electromagnetic Gaussian Schell-model (EGSM) beam is the simplest analytical model of a random electromagnetic beam. The model can be successfully used in studies of spectral, polarization and coherence properties of random electromagnetic beams on propagation in free space or in any linear medium, deterministic or random. The most general type of source which produces electromagnetic Gaussian Schell-model beam is characterized by 10 parameters. Using properties of the cross-spectral density matrix of such a beam, we derive necessary and sufficient conditions which the parameters of the source must satisfy in order to generate a physically realizable beam of this type. The conditions provide certain constraints for synthesis, simulations and any application of such beams.

KW - Electromagnetic beams

KW - Gaussian Schell-model beams

KW - Partially coherent beams

KW - Random sources

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U2 - 10.1016/j.optcom.2005.01.054

DO - 10.1016/j.optcom.2005.01.054

M3 - Article

AN - SCOPUS:17844365029

VL - 249

SP - 379

EP - 385

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

IS - 4-6

ER -