TY - JOUR

T1 - Cross-spectral density matrix of a random electromagnetic beam propagating through an apertured axially nonsymmetrical optical system

AU - Du, Xinyue

AU - Zhao, Daomu

AU - Korotkova, Olga

N1 - Funding Information:
This work was supported by the program of the Ministry of Education of China for New Century Excellent Talents in University (NCET-07-0760), the National Natural Science Foundation of China under grant 60478041 and by the AROSR under grant FA9550-08-1-0102. One of the authors (D. Zhao) was grateful to Professor E. Wolf and Professor M. Alonso for their useful discussions, and also grateful to the support by Pao Yu-Kong and Pao Zhao-Long Scholarship.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2008/5/26

Y1 - 2008/5/26

N2 - Using the fact that a hard-edged rectangular aperture function can be approximated by a two-dimensional multi-Gaussian series, analytic formulas for the elements of the cross-spectral density matrix of a random electromagnetic beam truncated by a rectangular aperture and passing through an axially nonsymmetrical optical system is derived. The analysis is illustrated by numerical examples relating to changes in the spectral degree of polarization of electromagnetic Gaussian Schell-model beams propagating through free space, focal system and dual-focus system. In particular, the effect of the size of the hard aperture on the spectral degree of polarization of the beam along its optical axis is discussed.

AB - Using the fact that a hard-edged rectangular aperture function can be approximated by a two-dimensional multi-Gaussian series, analytic formulas for the elements of the cross-spectral density matrix of a random electromagnetic beam truncated by a rectangular aperture and passing through an axially nonsymmetrical optical system is derived. The analysis is illustrated by numerical examples relating to changes in the spectral degree of polarization of electromagnetic Gaussian Schell-model beams propagating through free space, focal system and dual-focus system. In particular, the effect of the size of the hard aperture on the spectral degree of polarization of the beam along its optical axis is discussed.

KW - Axially nonsymmetrical optical system

KW - Random electromagnetic beam

KW - Rectangular aperture

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U2 - 10.1016/j.physleta.2008.03.004

DO - 10.1016/j.physleta.2008.03.004

M3 - Article

AN - SCOPUS:43049099254

VL - 372

SP - 4135

EP - 4140

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 22

ER -