Wire Grid Polarizers for IR Spectroscopy
September 01, 2013
Broadband wire grid polarizer (WGP) products suitable for MWIR and LWIR (mid- and long-wavelength infrared) spectroscopic applications requiring high contrast were developed on thin, AR-coated silicon substrates using Moxtek wafer-scale aluminum Nanowire? patterning capabilities. The Moxtek WGP performance was characterized from the SWIR to LWIR and shows marked improvement over competing WGP products, especially in terms of the contrast ratio between passing and blocking state polarizer transmittance.