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Proceedings Paper

Document Examination by Laser
Author(s): J. P. Wilde; T. W. Sinor; K. E. Everse; E. R. Menzel
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Paper Abstract

We have assessed the ability of laser-excited fluorescence to distinguish between similar inks, as might be found in document alterations. We find that the combined use of a coating procedure that strongly increases fluorescence efficiency at room temperature and fluorescence examination at 77°K provide high discriminatory capability. The procedures are easy to use and satisfy practicality requirements essential for utilization in document sections of law enforcement agencies.

Paper Details

Date Published: 1 January 1987
PDF: 4 pages
Proc. SPIE 0743, Fluorescence Detection, (1 January 1987); doi: 10.1117/12.966945
Show Author Affiliations
J. P. Wilde, Stanford University (United States)
T. W. Sinor, The University of Texas at Dallas (United States)
K. E. Everse, Texas Tech University (United States)
E. R. Menzel, Texas Tech University (United States)

Published in SPIE Proceedings Vol. 0743:
Fluorescence Detection
E. Roland Menzel, Editor(s)

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