Formation of helical beams by use of Pancharatnam-Berry phase optical elements

Spiral phase elements with topological charges based on space-variant Pancharatnam-Berry phase optical elements are presented. Such elements can be achieved by use of continuous computer-generated space-variant subwavelength dielectric gratings. We present a theoretical analysis and experimentally d...

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Bibliographic Details
Published inOptics letters Vol. 27; no. 21; p. 1875
Main Authors Biener, Gabriel, Niv, Avi, Kleiner, Vladimir, Hasman, Erez
Format Journal Article
LanguageEnglish
Published United States 01.11.2002
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Summary:Spiral phase elements with topological charges based on space-variant Pancharatnam-Berry phase optical elements are presented. Such elements can be achieved by use of continuous computer-generated space-variant subwavelength dielectric gratings. We present a theoretical analysis and experimentally demonstrate spiral geometrical phases for infrared radiation at a wavelength of 10.6microm .
ISSN:0146-9592
DOI:10.1364/ol.27.001875