Manifestation of the Gouy phase in strongly focused, radially polarized beams

X.Y. Pang, T.D. Visser

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Abstract

The Gouy phase, sometimes called the focal phase anomaly, is the curious effect that in the vicinity of its focus a diffracted field, compared to a non-diffracted, converging spherical wave of the same frequency, undergoes a rapid phase change by an amount of π . We theoretically investigate the phase behavior and the polarization ellipse of a strongly focused, radially polarized beam. We find that the significant variation of the state of polarization in the focal region, is a manifestation of the different Gouy phases that the two electric field components undergo. © 2013 Optical Society of America.
Original languageEnglish
Pages (from-to)8331-8341
JournalOptics Express
Volume21
Issue number7
DOIs
Publication statusPublished - 2013

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