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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 31 — Nov. 1, 2002
  • pp: 6702–6707

Sputtered Si:H alloys for edge filters: application to thermophotovoltaics

Peter M. Martin, Larry C. Olsen, John W. Johnston, and David M. DePoy  »View Author Affiliations


Applied Optics, Vol. 41, Issue 31, pp. 6702-6707 (2002)
http://dx.doi.org/10.1364/AO.41.006702


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Abstract

Si:H alloys are being investigated for the high-index material in an interference filter to provide spectral control in an application of thermophotovoltaic energy conversion. In particular, a multilayer edge filter is being developed to provide high transmission of photons with wavelengths between 1.0 and 2.4 µm and high reflectance for wavelengths outside this range. Thin films of Si:H were deposited by means of rf reactive sputtering. Deposition parameters were varied to optimize the H content in Si:H coatings such that the refractive index was greater than 3. Optical absorption near 1 µm and Si:H infrared absorptions near 5 and 12 µm were minimized.

© 2002 Optical Society of America

OCIS Codes
(310.1860) Thin films : Deposition and fabrication
(310.6860) Thin films : Thin films, optical properties
(350.2460) Other areas of optics : Filters, interference

History
Original Manuscript: November 30, 2001
Revised Manuscript: April 4, 2002
Published: November 1, 2002

Citation
Peter M. Martin, Larry C. Olsen, John W. Johnston, and David M. DePoy, "Sputtered Si:H alloys for edge filters: application to thermophotovoltaics," Appl. Opt. 41, 6702-6707 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-31-6702

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