Effect of input pulse chirp on nonlinear energy deposition and plasma excitation in water

Autor: Milián, C., Jarnac, A., Brelet, Y., Jukna, V., Houard, A., Mysyrowicz, A., Couairon, A.
Rok vydání: 2014
Předmět:
Zdroj: J. Opt. Soc. Am. B 31, 2829-2837 (2014)
Druh dokumentu: Working Paper
DOI: 10.1364/JOSAB.31.002829
Popis: We analyze numerically and experimentally the effect of the input pulse chirp on the nonlinear energy deposition from $5\ \mu$J fs-pulses at $800$ nm to water. Numerical results are also shown for pulses at $400$ nm, where linear losses are minimized, and for different focusing geometries. Input chirp is found to have a big impact on the deposited energy and on the plasma distribution around focus, thus providing a simple and effective mechanism to tune the electron density and energy deposition. We identify three relevant ways in which plasma features may be tuned.
Comment: 9 pages, 7 figures
Databáze: arXiv