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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 1 — Jan. 1, 2012
  • pp: 94–96

Optical microresonator based on hollow sphere with porous wall for chemical sensing

Hanzheng Wang, Lei Yuan, Cheol-Woon Kim, Qun Han, Tao Wei, Xinwei Lan, and Hai Xiao  »View Author Affiliations

Optics Letters, Vol. 37, Issue 1, pp. 94-96 (2012)

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A porous-wall hollow glass microsphere (PW-HGM) was investigated as an optical resonator for chemical vapor sensing. A single mode optical fiber taper was used to interrogate the microresonator. Adsorption of chemical molecules into the nanosized pores induced a refractive index change of the thin wall and thus a shift in its resonance spectrum. The PW-HGM resonator had shown higher vapor detection sensitivity in comparison with a solid microsphere under similar test conditions.

© 2012 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(230.5750) Optical devices : Resonators

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 14, 2011
Revised Manuscript: November 11, 2011
Manuscript Accepted: November 11, 2011
Published: December 24, 2011

Hanzheng Wang, Lei Yuan, Cheol-Woon Kim, Qun Han, Tao Wei, Xinwei Lan, and Hai Xiao, "Optical microresonator based on hollow sphere with porous wall for chemical sensing," Opt. Lett. 37, 94-96 (2012)

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