Abstract

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

© 2002 Optical Society of America

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)

Propagation-invariant vectorial Bessel beams obtained by use of quantized Pancharatnam–Berry phase optical elements

Avi Niv, Gabriel Biener, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 29(3) 238-240 (2004)

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)

Radially and azimuthally polarized beams generated by space-variant dielectric subwavelength gratings

Ze’ev Bomzon, Gabriel Biener, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 27(5) 285-287 (2002)

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)