title: Dispersion-based beam splitter in photonic crystals.
abstract: A novel implementation of a dispersion-based beam splitter in a photonic crystal (PhC) is proposed. The beam splitter consists of two periodic structures: a nonchannel dispersion-guiding region and a splitting structure operating inside the photonic bandgap. The dispersion-guiding PhC structure is used to route the optical wave by exploiting the dispersion properties of the lattice. An arbitrary power ratio between the output beams can be achieved by varying the parameters of the splitting structure. Within the studied range of splitting structures, high output power was observed and verified experimentally.
authors.affiliation: Department of Electrical and Computer Engineering, University of Delaware, 140 Evans Hall, Newark, Delaware 19716, USA.
authors.forename: Shouyuan
authors.initials: S
authors.lastname: Shi
authors.forename: Ahmed
authors.initials: A
authors.lastname: Sharkawy
authors.forename: Caihua
authors.initials: C
authors.lastname: Chen
authors.forename: David M
authors.initials: DM
authors.lastname: Pustai
authors.forename: Dennis W
authors.initials: DW
authors.lastname: Prather