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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 8 — Aug. 26, 2011

Structural considerations on multistopband mesoporous silicon rugate filters prepared for gas sensing purposes

Tero Jalkanen, Jarno Salonen, Vicente Torres-Costa, Kazuhiro Fukami, Tetsuo Sakka, and Yukio H. Ogata  »View Author Affiliations


Optics Express, Vol. 19, Issue 14, pp. 13291-13305 (2011)
http://dx.doi.org/10.1364/OE.19.013291


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Abstract

Different designs for producing multiple stopband mesoporous silicon rugate filters via electrochemical anodization are compared. The effects of light absorption and dispersion to visible range filter design are investigated. Thermal oxidation is applied for passivating the chemically reactive porous silicon surface, and the response of the passivated structures to ethanol vapor is examined. Differences in gas sensing properties for the various designs are evaluated and possible reasons for the observed differences are discussed. Methods for sidelobe suppression in multipeak filters are discussed and demonstrated, and their effects in gas sensing applications are estimated.

© 2011 OSA

OCIS Codes
(040.6040) Detectors : Silicon
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(230.5298) Optical devices : Photonic crystals
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Sensors

History
Original Manuscript: May 12, 2011
Manuscript Accepted: June 5, 2011
Published: June 24, 2011

Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Tero Jalkanen, Jarno Salonen, Vicente Torres-Costa, Kazuhiro Fukami, Tetsuo Sakka, and Yukio H. Ogata, "Structural considerations on multistopband mesoporous silicon rugate filters prepared for gas sensing purposes," Opt. Express 19, 13291-13305 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-19-14-13291


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