Gas breakdown by single similar 20 ps, 1$middot$06 $\mu$m and 0$middot$53 $\mu$m laser pulses

Autor: C L M Ireland, C Grey Morgan
Rok vydání: 1974
Předmět:
Zdroj: Journal of Physics D: Applied Physics. 7:L87-L90
ISSN: 0022-3727
DOI: 10.1088/0022-3727/7/8/103
Popis: The pressure dependence of the intensity for optical frequency breakdown of nitrogen and argon has been studied using single similar 20 ps, Nd3+ laser pulses at the fundamental and second harmonic frequencies. The gases were studied over a pressure range of similar 102-105 Torr at 1?06 ?m and similar 104-105 Torr at 0?53 ?m. The results lend support to the view that breakdown at both frequencies proceeds via cascade collisional ionization rather than by multiphoton ionization.
Databáze: OpenAIRE