title: Efficient beaming of self-collimated light from photonic crystals.
abstract: We propose a novel structure for achieving highly efficient beaming of self-collimated light from two-dimensional photonic crystals. The finite-difference time-domain simulations show that both enhanced transmission and highly directional emission of self-collimated beams from photonic crystals are achieved by using the bending and splitting of self-collimated beams in photonic crystals, and also by introducing an antireflection coating-like photonic crystal collimator to the exit surface of the structure. This structure is potentially important for highly efficient coupling of self-collimated beams from photonic crystals into conventional optical fibers and photonic crystal waveguides.
authors.affiliation: Department of Physics, KAIST, Daejeon 305-701, Korea.
authors.forename: Jong-Moon
authors.initials: JM
authors.lastname: Park
authors.forename: Sun-Goo
authors.initials: SG
authors.lastname: Lee
authors.forename: Hae Yong
authors.initials: HY
authors.lastname: Park
authors.forename: Jae-Eun
authors.initials: JE
authors.lastname: Kim
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods*; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D008962:Models, Theoretical; D055096:Optical Devices; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation