title: Efficient frequency conversion in slab waveguide by cascaded nonreciprocal interband photonic transitions.
abstract: A slab-waveguide-based configuration for efficient frequency conversion is proposed. In the proposed structure, frequency conversion is induced through cascaded multistep nonreciprocal interband photonic transitions activated by external refractive-index modulations. The advantages of interband photonic transition over intraband photonic transition for frequency conversion are analyzed with the coupled-mode theory.
authors.affiliation: Department of Electronics and Information Engineering, College of Science and Technology, Sejong Campus, Korea University, Jochiwon-eup, Yeongi-gun, Chungnam, 339-700, Korea. hwikim@korea.ac.kr
authors.forename: Hwi
authors.initials: H
authors.lastname: Kim
authors.forename: Byoungho
authors.initials: B
authors.lastname: Lee