Miniature Chemical Sensor combining Molecular Recognition with Evanescent Wave Cavity Ring-Down Spectroscopy | Zendy

Andrew C. R. Pipino | Zendy; Curtis W. Meuse | Zendy

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Miniature Chemical Sensor combining Molecular Recognition with Evanescent Wave Cavity Ring-Down Spectroscopy

Author(s) -

Andrew C. R. Pipino,

Curtis W. Meuse

Publication year - 2003

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/834664

Subject(s) - spectroscopy , cavity ring down spectroscopy , evanescent wave , chemical sensor , materials science , chemistry , analytical chemistry (journal) , optoelectronics , nanotechnology , physics , environmental chemistry , electrode , quantum mechanics

To address the chemical sensing needs of DOE, a new class of chemical sensors is being developed that enables qualitative and quantitative, remote, real-time, optical diagnostics of chemical species in hazardous gas, liquid, and semi-solid phases by employing evanescent wave cavity ring-down spectroscopy (EW-CRDS). The feasibility and sensitivity of EW-CRDS was demonstrated previously under Project No.60231. The objective of this project is to enhance the selectivity and domain of application of EW-CRDS. Selectivity is enhanced by using molecular recognition (MR) chemistry and polarized ''fingerprint'' near-IR spectroscopy, while the domain of application is expanded by combining EW-CRDS with the unique optical properties of nanoparticles and by extending the technique to liquids

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