title: Radially and azimuthally polarized beams generated by space-variant dielectric subwavelength gratings.
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.
authors.forename: Ze'ev
authors.initials: Z
authors.lastname: Bomzon
authors.forename: Gabriel
authors.initials: G
authors.lastname: Biener
authors.forename: Vladimir
authors.initials: V
authors.lastname: Kleiner
authors.forename: Erez
authors.initials: E
authors.lastname: Hasman