Xi J Q, Kim Jong Kyu, Schubert E F
Future Chips Constellation, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
Nano Lett. 2005 Jul;5(7):1385-7. doi: 10.1021/nl050698k.
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.