The transmittance of an anodic alumina film changes significantly with the refractive index of the guest material that is contained in columnar pores. We fabricated a channel waveguide with a Y junction in an alumina film by filling the pores with photocurable resins of suitable refractive indices.
© 1994 Optical Society of America
Original Manuscript: December 15, 1993
Published: May 15, 1994
Mitsunori Saito, Masatoshi Shibasaki, Shinji Nakamura, and Mitsunobu Miyagi, "Optical waveguides fabricated in anodic alumina films," Opt. Lett. 19, 710-712 (1994)