Differential absorption lidar CO2 laser system for remote sensing of TATP related gases

    Authors

    A. Pal; D. Clark; M. Sigman;D. K. Killinger

    Comments

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    Abstract

    A CW tunable 10.6 mu m CO2 laser differential absorption lidar (DIAL) system has been developed, for the first time to our knowledge, for the remote sensing of triacetone triperoxide (TATP) gas vapors, which have strong absorption lines at several wavelengths, including 3.3, 8.3, and 10.6 mu m. The DIAL laser beam was transmitted through an enclosed absorption cell containing TATP or SF6, and backscattered returns were measured from a retroreflector array target at ranges of 5-100m. DIAL sensitivity for the detection of TATP was about 0.5 ng/mu l [52 parts in 10(6)(ppm)] for a 0.3m path. (C) 2009 Optical Society of America

    Journal Title

    Applied Optics

    Volume

    48

    Issue/Number

    4

    Publication Date

    1-1-2009

    Document Type

    Article

    First Page

    B145

    Last Page

    B150

    WOS Identifier

    WOS:000264413400020

    ISSN

    1559-128X

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