19 June 2003 LIB thresholds at 44 fs, 810 nm, for chirped and nonchirped laser pulses
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Proceedings Volume 4978, Commercial and Biomedical Applications of Ultrafast Lasers III; (2003) https://doi.org/10.1117/12.478592
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States
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.
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Clarence P. Cain, Robert J. Thomas, David J. Stolarski, Gary D. Noojin, Gavin D. Buffington, Paul K. Kennedy, Benjamin A. Rockwell, "LIB thresholds at 44 fs, 810 nm, for chirped and nonchirped laser pulses", Proc. SPIE 4978, Commercial and Biomedical Applications of Ultrafast Lasers III, (19 June 2003); doi: 10.1117/12.478592; https://doi.org/10.1117/12.478592
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