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Al wire-grid polarizer using the s-polarization resonance effect at the 0.8-µm-wavelength band

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Abstract

An aluminum wire-grid polarizer whose period is 0.39 µm has been fabricated on a quartz substrate by electron-beam direct-writing lithography and the lift-off method. By using the s-polarization resonance effect and optimizing structural parameters, characteristics such as a loss of less than 20% and an extinction ratio larger than 1000 have been experimentally obtained at the 0.8-µm-wavelength band. Theoretical analysis is performed and found to be consistent with the experimental results.

© 1997 Optical Society of America

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