Abstract

Anodicallyoxidized alumina has been investigated theoretically and experimentally concerning the anisotropy of its optical loss and refractive index. When the pores in the alumina film are filled with metallic materials, the film yields anisotropy of the optical loss and consequently acts as a polarizer. However, the film acts as a retardation plate when the pores are filled with suitable dielectric materials. It has been demonstrated that the anodized alumina offers efficient optical elements throughout the wide spectral range from the visible to the infrared.

© 1989 Optical Society of America

Micropolarizer using anodized alumina with implanted metallic columns: theoretical analysis

Mitsunori Saito and Mitsunobu Miyagi
Appl. Opt. 28(16) 3529-3533 (1989)

Optical loss distribution in anodically oxidized alumina with a 2-D structure

Mitsunori Saito, Masayuki Kumagai, Mitsunobu Miyagi, and Kenji Wada
Appl. Opt. 30(16) 2257-2262 (1991)

Graded index profile of anodic alumina films that is induced by conical pores

Li-Feng Huang, Mitsunori Saito, Mitsunobu Miyagi, and Kenji Wada
Appl. Opt. 32(12) 2039-2044 (1993)

Cube polarizers by the use of metal particles in anodic alumina films

Kuniyoshi Takano, Mitsunori Saito, and Mitsunobu Miyagi
Appl. Opt. 33(16) 3507-3512 (1994)

Simple method to fabricate a polarizer with a large aperture by the use of anodic alumina films

Li-Feng Huang and Mitsunobu Miyagi
Appl. Opt. 34(19) 3662-3667 (1995)