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Determination of the electric cross-spectral density matrix of a random electromagnetic beam

โœ Scribed by Hema Roychowdhury; Emil Wolf

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
80 KB
Volume
226
Category
Article
ISSN
0030-4018

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โœฆ Synopsis

It has been shown in a recent publication that in order to calculate the changes which the degree of polarization, the degree of coherence and the spectrum of a random electromagnetic beam undergo as the beam propagates, it is necessary to know the 2 ร‚ 2 cross-spectral density matrix of the fluctuating electric field. In this paper, a procedure is described for measuring the four elements of this matrix, with the help of two polarizers and a rotator. The procedure makes use of the Young interference experiment and the recently derived spectral interference law for such beams.

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