Polarization Characteristics of Alumina Films Anodized at Low Temperature
- 1 July 1993
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 32 (7R)
- https://doi.org/10.1143/jjap.32.3169
Abstract
A prominent polarization function appears in anodic alumina films when oxidation is carried out at low temperature around 0°C. The alumina film that is anodized at 25 V and 0°C exhibits the extinction ratio of >30 dB/mm at the wavelengths of 0.6-1.6 µm. The polarization function seems to originate from unoxidized aluminum, which increases upon lowering of the anodization temperature. Using the polarization function, we fabricated a polarizer consisting of laminated alumina films.Keywords
This publication has 5 references indexed in Scilit:
- Graded index profile of anodic alumina films that is induced by conical poresApplied Optics, 1993
- Anisotropic optical loss and birefringence of anodized alumina filmJournal of the Optical Society of America A, 1989
- Aluminum anodizing technique for fabricating optical thin-film waveguides: a proposalApplied Optics, 1987
- Magneto-optical effect in anodized Al2O3 film with micropores electrodeposited with CoJournal of Applied Physics, 1985
- Colloidal metal in aluminum-oxideJournal of Applied Physics, 1978