Abstract

Metal columns in an anodic alumina film exhibit a prominent anisotropy in the optical loss near the resonance wavelength. The resonance wavelength depends on the direction of polarization and varies with the volume ratio of the metal columns. Based on the anisotropy, we fabricated cube polarizers and attained an extinction ratio of > 30 dB near the 1-μm wavelength.

© 1994 Optical Society of America

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