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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 14 — May. 10, 2009
  • pp: 2613–2618

Nanoengineered optical resonance sensor for composite material refractive-index measurements

Anna L. Pyayt, David A. Fattal, Zhiyong Li, and Raymond G. Beausoleil  »View Author Affiliations


Applied Optics, Vol. 48, Issue 14, pp. 2613-2618 (2009)
http://dx.doi.org/10.1364/AO.48.002613


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Abstract

We present an optical resonance sensor capable of measurement of refractive index in highly nonhomogeneous materials. Traditional optical resonance sensors fail when the size of particles is comparable with the wavelength ( 100 nm and larger). Our new nanoengineered design allows incorporation of a highly delocalized mode into a resonance structure. The sensing depth of the device was measured to be 1 μm , the largest reported in the literature as far as we know, with a quality factor of 500. We demonstrate two applications.

© 2009 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1950) Diffraction and gratings : Diffraction gratings
(050.2770) Diffraction and gratings : Gratings
(230.3990) Optical devices : Micro-optical devices
(230.4000) Optical devices : Microstructure fabrication
(240.3990) Optics at surfaces : Micro-optical devices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: February 4, 2009
Revised Manuscript: April 2, 2009
Manuscript Accepted: April 3, 2009
Published: May 1, 2009

Citation
Anna L. Pyayt, David A. Fattal, Zhiyong Li, and Raymond G. Beausoleil, "Nanoengineered optical resonance sensor for composite material refractive-index measurements," Appl. Opt. 48, 2613-2618 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-14-2613

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