title: Silica nanorod-array films with very low refractive indices.
abstract: The refractive-index contrast is an important figure of merit for dielectric multilayer structures, optical resonators, and photonic crystals. This represents a strong driving force for novel materials that have refractive indices lower than those of conventional optically transparent materials. Silica nanorod-array dielectric films with unprecedented low refractive indices of 1.08 are demonstrated and shown to have viable optical properties including enhanced reflectivity of a single-pair distributed Bragg reflector.
authors.affiliation: Future Chips Constellation, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
authors.forename: J Q
authors.initials: JQ
authors.lastname: Xi
authors.forename: Jong Kyu
authors.initials: JK
authors.lastname: Kim
authors.forename: E F
authors.initials: EF
authors.lastname: Schubert
mesh_terms: D001718:Birefringence; D008422:Materials Testing; D008567:Membranes, Artificial; D043942:Nanotubes / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D055095:Optics and Photonics / Q000295:instrumentation*; D010316:Particle Size; D012031:Refractometry; D012822:Silicon Dioxide / Q000032:analysis / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D012822:Silicon Dioxide