Silica Nanorod-Array Films with Very Low Refractive Indices

Silica Nanorod-Array Films with Very Low Refractive Indices

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. Sil...

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Veröffentlicht in:Nano letters 2005-07, Vol.5 (7), p.1385-1387
Hauptverfasser: Xi, J.-Q, Kim, Jong Kyu, Schubert, E. F
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Birefringence
Condensed matter: structure, mechanical and thermal properties
Electronics
Exact sciences and technology
Materials Testing
Membranes, Artificial
Microelectronic fabrication (materials and surfaces technology)
Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
Nanotubes - analysis
Nanotubes - chemistry
Nanotubes - ultrastructure
Optics and Photonics - instrumentation
Particle Size
Physics
Refractometry
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Silicon Dioxide - analysis
Silicon Dioxide - chemistry
Structure of solids and liquids
crystallography
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Zusammenfassung: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.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl050698k