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 $10.6 \mathit{\mu }\mathrm{m}$. 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.

© 2002 Optical Society of America

Formation of linearly polarized light with axial symmetry by use of space-variant subwavelength gratings

Avi Niv, Gabriel Biener, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 28(7) 510-512 (2003)

Polarization Talbot self-imaging with computer-generated, space-variant subwavelength dielectric gratings

Ze’ev Bomzon, Avi Niv, Gabriel Biener, Vladimir Kleiner, and Erez Hasman
Appl. Opt. 41(25) 5218-5222 (2002)

Computer-generated infrared depolarizer using space-variant subwavelength dielectric gratings

Gabriel Biener, Avi Niv, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 28(16) 1400-1402 (2003)

Pancharatnam–Berry phase in space-variant polarization-state manipulations with subwavelength gratings

Ze’ev Bomzon, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 26(18) 1424-1426 (2001)

Space-variant Pancharatnam–Berry phase optical elements with computer-generated subwavelength gratings

Ze’ev Bomzon, Gabriel Biener, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 27(13) 1141-1143 (2002)