Fourier processing with partially coherent fields

Taco D. Visser, Govind P. Agrawal, Peter W. Milonni

Research output: Contribution to JournalArticleAcademicpeer-review


We describe how Fourier signal processing techniques can be generalized to partially coherent fields. Using standard coherence theory, we first show that focusing of a partially coherent beam by a lens modifies its coherence properties. We then consider a 4f imaging system composed of two lenses and discuss how spatial filtering in the Fourier plane allows one to tune the coherence properties of the beam. This, in turn, provides control over the beam's directionality, spectrum, and degree of polarization. (C) 2017 Optical Society of America
Original languageEnglish
Pages (from-to)4600-4602
Number of pages3
JournalOptics Letters
Issue number22
Publication statusPublished - 15 Nov 2017


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