Laser-induced breakdown by impact ionization in SiO[sub 2] with pulse widths from 7 ns to 150 fs

Du, D.; Liu, X.; Korn, G.; Squier, J.; Mourou, G.
June 1994
Applied Physics Letters;6/6/1994, Vol. 64 Issue 23, p3071
Academic Journal
Examines the laser-induced breakdown in fused silica with laser pulse widths from 7 nanosecond to 150 femtosecond. Measurement of the impact ionization coefficient; Role of photoionization in ultrashort pulses breakdown; Dominance of the avalanche ionization mechanism over the entire pulse-width range.


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