We report a polarization beam splitter that uses polarization gratings written onto a zero-twist nematic liquid-crystal display. We show three configurations. The first two separate the diffracted light into two orthogonally polarized orders that are either linearly or circularly polarized. In the third configuration, we demonstrate a novel case for which the output is separated into two nonorthonormal polarization states. One component is linearly polarized and the second is circularly polarized.
© 2001 Optical Society of America
(050.2770) Diffraction and gratings : Gratings
(230.1360) Optical devices : Beam splitters
(230.3720) Optical devices : Liquid-crystal devices
(230.5440) Optical devices : Polarization-selective devices
(260.5430) Physical optics : Polarization
Jeffrey A. Davis, Jingo Adachi, Carlos R. Fernández-Pousa, and Ignacio Moreno, "Polarization beam splitters using polarization diffraction gratings," Opt. Lett. 26, 587-589 (2001)