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Pulsed quantum cascade laser-based CRDS substance detection: real-time detection of TNT

Harb, Charles; Boyson, Toby K.; kallapur, Abhijit; Petersen, Ian; Calzada, Maria; Spence, Thomas; Kirkbride, Paul; Moore, David S.


This paper presents experimental results from a pulsed quantum cascade laser based cavity ringdown spectrometer used as a high-throughput detection system. The results were obtained from an optical cavity with 99.8% input and output coupling mirrors that was rapidly swept (0.2s to 7s sweep times) between 1582.25 cm−1 (6.3201μm) and 1697.00 cm−1 (5.8928μm). The spectrometer was able to monitor gas species over the pressure range 585 torr to 1μtorr, and the analysis involves a new digital data...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.20.015489
Access Rights: Open Access


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