Journal :   Asian Journal of Research in Chemistry

Volume No. :   3

Issue No. :  1

Year :  2010

Pages :   4-8

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Cavity Ring down Spectroscopy: A Review



Address:   P Nagaraju*, VDN Srinivas, SVN Padma, PNV Gopal and D Mallikarjuna Rao
Department of Pharmaceutical Analysis, Hindu College of Pharmacy, Amaravathi Road, Guntur
*Corresponding Author
DOI No:

ABSTRACT:
Over the past decade, cavity ring down spectroscopy has emerged as a powerful technique for performing direct absorption measurements using pulsed lasers. Cavity ring down spectroscopy has since been used from the ultraviolet to the mid-infrared. It is a direct absorption technique, which can be performed with pulsed or continuous light sources and has a significantly higher sensitivity than obtainable in conventional absorption spectroscopy. It can be used to measure the concentration of some light-absorbing substances. Typically, the substances to be measured are in gaseous form. This technique is most widely known as cavity ring-down spectroscopy, although the alternative, but more cumbersome, cavity ring-down laser absorption spectroscopy is preferred by some authors. Here we discuss about the experimental implementation of Cavity ring down spectroscopy and its application to a number of areas of research including laser diagnostics of hostile environments, reaction kinetics and spectroscopy, with particular emphasis on our ongoing studies of the fast (sub-nanosecond) pre dissociation of electronically excited states of small molecules and radicals.
KEYWORDS:
cavity ring down spectroscopy, absorption spectroscopy.
Cite:
P Nagaraju, VDN Srinivas, SVN Padma, PNV Gopal, D Mallikarjuna Rao. Cavity Ring down Spectroscopy: A Review. Asian J. Research Chem. 3(1):Jan.-Mar. 2010 page 4-8.
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