Observer-dependent sign inversions of polarization singularities

Isaac Freund

doi:10.1364/ol.39.005873

Observer-dependent sign inversions of polarization singularities

Isaac Freund

Department of Physics

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

We describe observer-dependent sign inversions of the topological charges of vector field polarization singularities: C points (points of circular polarization), L points (points of linear polarization), and two virtually unknown singularities we call γ^C and α^L points. In all cases, the sign of the charge seen by an observer can change as she changes the direction from which she views the singularity. Analytic formulas are given for all C and all L point sign inversions.

Original language	English
Pages (from-to)	5873-5876
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	20
DOIs	https://doi.org/10.1364/ol.39.005873
State	Published - 15 Oct 2014

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© 2014 Optical Society of America

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10.1364/ol.39.005873

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abstract = "We describe observer-dependent sign inversions of the topological charges of vector field polarization singularities: C points (points of circular polarization), L points (points of linear polarization), and two virtually unknown singularities we call γC and αL points. In all cases, the sign of the charge seen by an observer can change as she changes the direction from which she views the singularity. Analytic formulas are given for all C and all L point sign inversions.",

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AB - We describe observer-dependent sign inversions of the topological charges of vector field polarization singularities: C points (points of circular polarization), L points (points of linear polarization), and two virtually unknown singularities we call γC and αL points. In all cases, the sign of the charge seen by an observer can change as she changes the direction from which she views the singularity. Analytic formulas are given for all C and all L point sign inversions.

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Observer-dependent sign inversions of polarization singularities

Abstract

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