Quantum Cascade Laser-Based Photoacoustic Spectroscopy for Trace Vapor Detection and Molecular Discrimination

We report on the development of a microelectromechanical systems (MEMS)-scale photoacoustic sensor for the detection of trace gases. A mid-infrared quantum cascade laser (QCL) was used to determine detection limits for acetic acid, acetone, 1,4-dioxane, and vinyl acetate. The source was continuously...

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Bibliographic Details
Main Authors: Almon Fisher, Paul Pellegrino, John Bender, Ellen Holthoff
Format: Article
Language:English
Published: MDPI AG 2010-03-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/10/3/1986/