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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 14 — Jul. 7, 2008
  • pp: 10254–10268

Analysis of ring resonators for chemical vapor sensor development

Yuze Sun and Xudong Fan  »View Author Affiliations

Optics Express, Vol. 16, Issue 14, pp. 10254-10268 (2008)

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We carry out simulations based on a four-layer Mie model to systematically analyze the sensing performance of ring resonator chemical vapor sensors. Two sensor configurations are investigated, in which a polymer layer is coated on either interior or exterior surface of a fused silica cylindrical ring resonator. Upon the interaction of the polymer and the vapor analyte, the refractive index (RI) and the thickness of the polymer layer change, leading to a spectral shift in the resonant modes that are supported by the ring resonator. The RI sensitivity and thickness sensitivity are studied as a function of the polymer coating thickness and RI, the ring resonator size and wall thickness, and resonant mode order and polarization. Similarities and differences between the two sensor configurations are also discussed. Our work should provide a general guidance in development of sensitive ring resonator chemical vapor sensors.

© 2008 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(230.5750) Optical devices : Resonators
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Remote sensing and sensors

Original Manuscript: May 21, 2008
Revised Manuscript: June 19, 2008
Manuscript Accepted: June 19, 2008
Published: June 26, 2008

Virtual Issues
Vol. 3, Iss. 8 Virtual Journal for Biomedical Optics

Yuze Sun and Xudong Fan, "Analysis of ring resonators for chemical vapor sensor development," Opt. Express 16, 10254-10268 (2008)

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