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.

Author Information

Kerr, NC
Clark, SE
Emmony, DC
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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