Abstract

We present a unique method for real-time polarization measurement by use of a discrete space-variant subwavelength grating. The formation of the grating is done by discrete orientation of the local subwavelength grooves. The complete polarization analysis of the incident beam is determined by spatial Fourier transform of the near-field intensity distribution transmitted through the discrete subwavelength dielectric grating followed by a subwavelength metal polarizer. We discuss a theoretical analysis based on Stokes–Mueller formalism, as well as on Jones calculus, and experimentally demonstrate our approach with polarization measurements of infrared radiation at a wavelength of 10.6 µm.

© 2003 Optical Society of America

Space-variant polarization manipulation for far-field polarimetry by use of subwavelength dielectric gratings

Yuri Gorodetski, Gabriel Biener, Avi Niv, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 30(17) 2245-2247 (2005)

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)

Spatial Fourier-transform polarimetry using space-variant subwavelength metal-stripe polarizers

Ze’ev Bomzon, Gabriel Biener, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 26(21) 1711-1713 (2001)

Real-time analysis of partially polarized light with a space-variant subwavelength dielectric grating

Ze’ev Bomzon, Gabriel Biener, Vladimir Kleiner, and Erez Hasman
Opt. Lett. 27(3) 188-190 (2002)

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)