Polar Policryps diffractive structures generate cylindrical vector beams
Applied Physics Letters
American Institute of Physics Inc.
201101 - 201101-4
Item Usage Stats
MetadataShow full item record
Local shaping of the polarization state of a light beam is appealing for a number of applications. This can be achieved by employing devices containing birefringent materials. In this article, we present one such enables converting a uniformly circularly polarized beam into a cylindrical vector beam (CVB). This device has been fabricated by exploiting the POLICRYPS (POlymer-LIquid CRYstals-Polymer-Slices) photocuring technique. It is a liquid-crystal-based optical diffraction grating featuring polar symmetry of the director alignment. We have characterized the resulting CVB profile and polarization for the cases of left and right circularly polarized incoming beams.
Liquid crystal polymers
Circularly polarized beam
Cylindrical vector beam
Optical diffraction gratings
Polymer liquid crystals
Right circularly polarized
Published Version (Please cite this version)http://dx.doi.org/10.1063/1.4935605
Showing items related by title, author, creator and subject.
Mutlu, M.; Akosman, A. E.; Serebryannikov, A. E.; Özbay, Ekmel (Optical Society of America, 2011-04-28)An asymmetric chiral metamaterial structure is constructed by using four double-layered U-shaped split ring resonators, which are each rotated by 90° with respect to their neighbors. The peculiarity of the suggested design ...
Channel polarization: a method for constructing capacity-achieving codes for symmetric binary-input memoryless channels Arikan, E. (IEEE, 2009)A method is proposed, called channel polarization, to construct code sequences that achieve the symmetric capacity I(W) of any given binary-input discrete memoryless channel (B-DMC) W. The symmetric capacity is the highest ...
Arikan, E.; Ul Hassan, N.; Lentmaier, M.; Montorsi, G.; Sayir, J. (Korean Institute of Communication Sciences, 2015)Three areas of ongoing research in channel coding are surveyed, and recent developments are presented in each area: Spatially coupled low-density parity-check (LDPC) codes, nonbinary LDPC codes, and polar coding.