Journal
APPLIED PHYSICS LETTERS
Volume 89, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2358813
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Both high contrast and high transmittance are preferred for optical polarizers. To achieve high transmittance for aluminum nanowire-grid polarizers, a narrow linewidth is required. In this letter, aluminum nanowire-grid polarizers with 30-nm-wide linewidth and 200 nm depth were fabricated by UV-nanoimprint lithography, which leads to ultrahigh transmittance. To achieve a high contrast, the authors fabricated the 30-nm-wide aluminum nanowire structures on both sides of the glass wafers. An extremely high contrast up to 10 000:1 was achieved, in the visible range, along with good transmittance of 83%-87% for the double-side aluminum nanowire-grid polarizers. (c) 2006 American Institute of Physics.
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