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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 4 — Apr. 1, 2009

Analysis of Bloch-surface-wave assisted diffraction-based biosensors

Marco Liscidini and J. E. Sipe  »View Author Affiliations


JOSA B, Vol. 26, Issue 2, pp. 279-289 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000279


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Abstract

A systematic study of Bloch surface wave (BSW) properties and applications in diffraction-based biosensors is presented. The design of such devices starts with the calculation of the BSW dispersion relation for a semi-infinite one-dimensional photonic crystal. We propose an approach in which polarization and 1DPC termination effects are simply described. Since in a realistic device the number of periods is limited, we investigate the issues arising from finite size effects and the choice of a structure substrate. Diffraction efficiency is studied as a function index contrast, multilayer termination, grating thickness, and number of periods. Numerical examples for Si Si O 2 and a - Si 1 x N x : H periodic dielectric stacks are presented, showing that BSW can be exploited for the realization of efficient diffraction-based biosensors from the infrared to the visible range.

© 2009 Optical Society of America

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: September 11, 2008
Manuscript Accepted: November 20, 2008
Published: January 23, 2009

Virtual Issues
Vol. 4, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Marco Liscidini and J. E. Sipe, "Analysis of Bloch-surface-wave assisted diffraction-based biosensors," J. Opt. Soc. Am. B 26, 279-289 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josab-26-2-279

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