Degree of polarization in the focal region of a lens

Xinying Zhao, Taco D. Visser*, Govind P. Agrawal

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review


We examine the 3D distribution of the degree of polarization (DOP) in the focal region of a thin paraxial lens. Analytic expressions for the case of a focused Gaussian–Schell model beam are derived. These show that the DOP satisfies certain spatial symmetry relations. Furthermore, its value varies strongly in the vicinity of the geometrical focus, and its maximum, which need not occur at the focus, can be significantly higher than that of the incident beam.

Original languageEnglish
Pages (from-to)1518-1522
Number of pages5
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number9
Publication statusPublished - Sept 2018


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