|M.Sc Student||Gorodetski Yuri|
|Subject||Optical Properties of Polarization-Depended Geometric|
Phase Elements with Partially Polarized Light
|Department||Department of Mechanical Engineering||Supervisor||Professor Erez Hasman|
The experiments made use of a spherical p-retardation geometric phase element that was realized by use of a space-variant subwavelength grating illuminated with CO2 laser radiation of 10.6mm wavelength. A method for polarimetric measurement using such grating with linear geometric phase and p/2 - retardation is also presented. The polarization state is retrieved by measuring the far-field intensity of a beam emerging from the grating followed by a polarizer. The analysis for a partially polarized, quasi-monochromatic beam is performed using the beam coherence polarization matrix along with the extended van Cittert-Zernike theorem. We experimentally demonstrate polarization measurements of both fully and partially polarized light.