Optical emission studies on graphite in a laser/vaporization supersonic jet cluster source
✍ Scribed by M. Anselment; R.Seth Smith; E. Daykin; L.F. Dimauro
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 533 KB
- Volume
- 134
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
C2 Swan band emission (d '&.+a 311u, 170 ns lifetime) is observed in a supersonic free jet using a pulsed laser/vaporization source with a graphite target. In He, Swan band emission is observed at distances of up to 15 nozzle diameters from the orifice and as long as 6 us after the laser pulse. The emission data are reported as a function of laser intensity, backing pressure, downstream distance, and delay times. Evidence is presented supporting the continuous localized formation of excited CZ molecules in the free jet via dissociative processes involving larger neutral and charged carbon clusters.