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Proceedings Paper

LIB thresholds at 44 fs, 810 nm, for chirped and nonchirped laser pulses
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Paper Abstract

We have measured the laser-induced breakdown (LIB) thresholds in water using an artificial eye for chirped and non-chirped laser pulses at 44 fs and 810 nm. We compare these measured thresholds to calculated values for a range of pulse widths from 20 fs to 120 fs and for various focal point diameters. The LIB threshold using a flat phase pulse, i.e., no chirped compensation for propagation through the water was measured to be 0.285 (0.280 - 0.290) μJ. Using a pre-chirp on the laser pulse, the LIB threshold dropped by one-third to 0.192 (0.191 - 0.194) μJ.

Paper Details

Date Published: 19 June 2003
PDF: 7 pages
Proc. SPIE 4978, Commercial and Biomedical Applications of Ultrafast Lasers III, (19 June 2003); doi: 10.1117/12.478592
Show Author Affiliations
Clarence P. Cain, Northrop Grumman Corp. (United States)
Robert J. Thomas, Air Force Research Lab. (United States)
David J. Stolarski, Northrop Grumman Corp. (United States)
Gary D. Noojin, Northrop Grumman Corp. (United States)
Gavin D. Buffington, Fort Hays State Univ. (United States)
Paul K. Kennedy, U. S. Air Force Research Lab. (United States)
Benjamin A. Rockwell, U.S. Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 4978:
Commercial and Biomedical Applications of Ultrafast Lasers III
Joseph Neev; Andreas Ostendorf; Christopher B. Schaffer, Editor(s)

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