SYMPOSIA PAPER Published: 01 January 1990

IR Laser Beam Profiling Using Quenched Fluorescence


The construction and performance of a system for the spatial characterization of a CO2 pulsed laser beam is described. Using thermally quenched fluorescence a direct imaging technique has been developed for single shot CO2 laser pulse beam profiling. A CCD video camera and framestore interfaced to a PC computer are used to image the spatial intensity distribution produced by a CO2 pulse incident upon a temperature dependent luminescent screen. The resolution is similar to much more expensive pyroelectric detector array techniques with all the advantages of two dimensional beam processing.

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Developed by Committee: E13
Pages: 214–219
DOI: 10.1520/STP26488S
ISBN-EB: 978-0-8031-5157-4
ISBN-13: 978-0-8031-4478-1