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
[of America ]
Hitoshi Tamada, Tohru Doumuki, Takashi Yamaguchi, and Shuichi Matsumoto, "Al wire-grid polarizer using the s-polarization resonance effect at the 0.8-µm-wavelength band," Opt. Lett. 22, 419-421 (1997)