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

Technical Report · Mon Jun 17 00:00:00 EDT 2002

DOI:https://doi.org/10.2172/834661· OSTI ID:834661

Pipino, Andrew C. R.; Meuse, Curtis W

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 ringdown spectroscopy (EW-CRDS). The sensitivity of EW-CRDS was demonstrated previously under Project No.60231. The objective of this project is to enhance the range of application and selectivity of the technique by combining EW-CRDS with refractive-index-sensitive nanoparticle optics, molecular recognition (MR) chemistry, and by utilizing the polarization-dependence of EW-CRDS. Research Progress and Implications

• Research Organization: National Institute of Standards and Technology, Gaithersburg, MD (US)
• Sponsoring Organization: USDOE Office of Environmental Management (EM) (US)
• DOE Contract Number: AI07-97ER62518
• OSTI ID: 834661
• Report Number(s): EMSP-73844-2002; R&D Project: EMSP 73844; TRN: US0407299
• Resource Relation: Other Information: PBD: 17 Jun 2002
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
54 ENVIRONMENTAL SCIENCES
CHEMISTRY
OPTICS
SENSITIVITY
SPECTROSCOPY