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Label-free Single Molecule Detection Using Microtoroid Optical Resonators
Published on: December 29, 2015
Fiber ring laser interrogated zeolite-coated singlemode-multimode-singlemode structure for trace chemical detection
1Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, USA.
Optics Letters
|June 5, 2012
Abstract:
Zeolite thin films were synthesized on the claddingless multimode portion of a singlemode-multimode-singlemode (SMS) fiber structure to construct a chemical vapor sensor. The zeolite-coated SMS structure was inserted into a fiber ring amplifier to produce a laser line. Combining the strong molecular adsorption capability of the nanoporous zeolite and the high signal-to-noise ratio of the fiber laser, the device was demonstrated for chemical vapor sensing with a low detection limit.

