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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 28 — Oct. 1, 2011
  • pp: 5465–5472

Simulation and optimization of polymer-coated microsphere resonators in chemical vapor sensing

Nai Lin, Lan Jiang, Sumei Wang, Qianghua Chen, Hai Xiao, Yongfeng Lu, and Hailung Tsai  »View Author Affiliations

Applied Optics, Vol. 50, Issue 28, pp. 5465-5472 (2011)

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This study presents a chemical vapor sensor based on polymer-coated microsphere resonators. A theoretical simulation of the sensor response is performed, and optimization of the polymer layer thickness is investigated. Results show that the sensor exhibits a good linearity and a low detection limit of the refractive index change. Especially at the thermostable thickness of the polymer layer, the refractive index detection limit of the wavelength around 780 nm can be as low as 2 × 10 8 refractive index unit for a spectral resolution of 10 fm , without any temperature control. Because of the good sensing performance and simple manipulation, the proposed sensor is a very promising platform for chemical vapor detections.

© 2011 Optical Society of America

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(160.5470) Materials : Polymers
(230.5750) Optical devices : Resonators
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 9, 2011
Revised Manuscript: July 6, 2011
Manuscript Accepted: July 27, 2011
Published: September 30, 2011

Nai Lin, Lan Jiang, Sumei Wang, Qianghua Chen, Hai Xiao, Yongfeng Lu, and Hailung Tsai, "Simulation and optimization of polymer-coated microsphere resonators in chemical vapor sensing," Appl. Opt. 50, 5465-5472 (2011)

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