Abstract
Laser-initiated breakdown of N2, O2, and Ar has been investigated at sub-atmospheric pressures using a pulsed (10-nsec) Nd:yttrium aluminum garnet (Nd:YAG) laser at 1.06 μm. Breakdown thresholds have been determined from 3 to 760 Torr, and spectral analysis of the plasma emission has been carried out at 10 and 125 Torr over the 300–600-nm range. Sharp spectral features arising from highly excited singly and multiply charged ions are reported as well as an underlying continuum at intermediate pressure. Time-resolved measurements indicate a complex kinetic dynamic optical behavior.
© 1983 Optical Society of America
Full Article | PDF ArticleMore Like This
Petr Chylek, Maurice A. Jarzembski, Vandana Srivastava, and Ronald G. Pinnick
Appl. Opt. 29(15) 2303-2306 (1990)
Suresh C. Khandelwal, Marc D. Porter, and Gordon B. Skinner
Appl. Opt. 22(13) 1966-1969 (1983)
Naveed Ahmed Chishti, Shazia Bashir, Asadullah Dawood, and Muhammad Asad Khan
Appl. Opt. 58(4) 1110-1120 (2019)