Computer-generated infrared depolarizer using space-variant subwavelength dielectric gratings.
We present a novel method for the formation of a complete depolarizer that is based on a polarization-state scrambling procedure over the space domain. Such an element can be achieved by use of cascaded, computer-generated, space-variant subwavelength dielectric gratings. We introduce a theoretical analysis and experimentally demonstrate a depolarizer for infrared radiation at a wavelength of 10.6 microm.
Biener
Gabriel
G
Optical Engineering Laboratory, Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Niv
Avi
A
Kleiner
Vladimir
V
Hasman
Erez
E