Radially and azimuthally polarized beams generated by space-variant dielectric subwavelength gratings.
Opt Lett
; 27(5): 285-7, 2002 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-18007778
ABSTRACT
We present a novel method for forming radially and azimuthally polarized beams by using computer-generated subwavelength dielectric gratings. The elements were deposited upon GaAs substrates and produced beams with a polarization purity of 99.2% at a wavelength of 10.6 microm . We have verified the polarization properties with full space-variant polarization analysis and measurement, and we show that such beams have certain vortexlike properties and that they carry angular momentum.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2002
Tipo de documento:
Article