TITLE

Formation of radially and azimuthally polarized light using space-variant subwavelength metal stripe gratings

AUTHOR(S)
Bomzon, Ze’ev; Kleiner, Vladimir; Hasman, Erez
PUB. DATE
September 2001
SOURCE
Applied Physics Letters;9/10/2001, Vol. 79 Issue 11
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a unique method for converting circularly polarized light into radially and azimuthally polarized beams. The method is based on the use of computer-generated space-variant subwavelength metal stripe gratings. The elements were realized on GaAs substrates and produced beams with high polarization purity at a wavelength of 10.6 μm. As a result of the conversion, the beams also undergo space-variant phase modification, which has an effect on their propagation. We demonstrate the effect experimentally, and calculate it using full space-variant polarization and phase analysis based on rigorous coupled-wave analysis and Jones calculus. © 2001 American Institute of Physics.
ACCESSION #
5113232

 

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