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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 15 — Aug. 1, 2001
  • pp: 1197–1199

Dielectric omnidirectional visible reflector

M. Deopura, C. K. Ullal, B. Temelkuran, and Y. Fink  »View Author Affiliations


Optics Letters, Vol. 26, Issue 15, pp. 1197-1199 (2001)
http://dx.doi.org/10.1364/OL.26.001197


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Abstract

We demonstrate the fabrication of an all-dielectric omnidirectional mirror for visible frequencies. The dielectric reflector consists of a stack of 19 alternating layers of tin (IV) sulfide and silica. Using a combination of thermal evaporation (for tin sulfide) and thick electron-beam evaporation (for silica), we have achieved a refractive-index contrast of 2.6/1.46 , one of the highest refractive-index contrasts demonstrated in one-dimensional photonic bandgap systems designed for the visible frequency range. The tin sulfide–silica material system developed allowed the formation of a broadband visible reflector with an omnidirectional range greater than 10%. Possible applications of the system include efficient reflectors, high-frequency waveguides for communications and power delivery, and high- Q cavities.

© 2001 Optical Society of America

OCIS Codes
(140.7300) Lasers and laser optics : Visible lasers
(300.6550) Spectroscopy : Spectroscopy, visible
(310.6860) Thin films : Thin films, optical properties

Citation
M. Deopura, C. K. Ullal, B. Temelkuran, and Y. Fink, "Dielectric omnidirectional visible reflector," Opt. Lett. 26, 1197-1199 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-15-1197

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