Abstract
In this Letter, we present an iridium wire grid polarizer with a large spectral working range from IR down to the UV spectral region. The required grating period of for an application below a wavelength of was realized using a spatial frequency doubling technique based on ultrafast electron beam writing. The optical performance of the polarizer at a wavelength of is a transmittance of almost 60% and an extinction ratio of about 30 (). Furthermore, the oxidation resistance is discussed.
© 2011 Optical Society of America
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