Cosine-Gaussian Schell-model sources

Zhangrong Mei, Olga Korotkova

Research output: Contribution to journalArticlepeer-review

145 Scopus citations


We introduce a new class of partially coherent sources of Schell type with cosine-Gaussian spectral degree of coherence and confirm that such sources are physically genuine. Further, we derive the expression for the cross-spectral density function of a beam generated by the novel source propagating in free space and analyze the evolution of the spectral density and the spectral degree of coherence. It is shown that at sufficiently large distances from the source the degree of coherence of the propagating beam assumes Gaussian shape while the spectral density takes on the dark-hollow profile.

Original languageEnglish (US)
Pages (from-to)2578-2580
Number of pages3
JournalOptics Letters
Issue number14
StatePublished - Jul 15 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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