Spectroscopic investigation of laser-initiated low-pressure plasmas in atmospheric gases
Applied Optics, Vol. 22, Issue 10, pp. 1573-1577 (1983)
http://dx.doi.org/10.1364/AO.22.001573
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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.
Citation
R. A. Armstrong, R. A. Lucht, and W. T. Rawlins, "Spectroscopic investigation of laser-initiated low-pressure plasmas in atmospheric gases," Appl. Opt. 22, 1573-1577 (1983)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-22-10-1573
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