WIDE-ANGLE BROADBAND PLATE POLARIZER WITH 1D PHOTONIC CRYSTAL

Abstract

Here a photonic crystal plate polarizer (with periodic air gaps), operating over a broad wavelength range extending from 1000 nm to 1770 nm and with a wide angular field of 16◦ measured in air, is suggested. The polarizer has an average degree of polarization equal to 0.9999, and a high extinction ratio (> 8.308 × 104) in transmitted light. Since the plate polarizer does not require optical cements, it is most suitable for use with high power laser systems. It is also smaller in size as compared with multilayered cube polarizers.