Laser light absorption measurements in an interaction-produced plasma column
- 15 May 1976
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 28 (10) , 583-585
- https://doi.org/10.1063/1.88599
Abstract
100 J of 10.6‐μ laser energy produced in a 1.5‐μs pulse was focused to a 2‐mm‐diam spot by a 50‐cm‐focal‐length mirror. A plasma was created by breakdown in the 70‐ns gain‐switched peak of the pulse where the light flux becomes greater than 1010 W/cm2. The plasma column subsequently created in 5–20 Torr of hydrogen by the absorbed light energy was observed by 5‐ns exposure and streak photographs. The aspect of beam trapping is demonstrated by measurements of the transmitted light intensity radial distribution and significant energy absorption is shown by the measurement of transmitted energy.Keywords
This publication has 5 references indexed in Scilit:
- Beam self-trapping and dynamics of laser-induced magnetoplasmasJournal of Applied Physics, 1975
- CO2 Laser Induced Breakdown and Heating of Hydrogen in a Magnetic Mirror Field GeometryCanadian Journal of Physics, 1975
- CO2 laser heating of plasma columns in a steady solenoid fieldApplied Physics Letters, 1975
- Effects of pressure and magnetic field upon physical processes in laser−induced gas breakdownJournal of Applied Physics, 1975
- Measurements of electron density evolution and beam self-focusing in a laser-produced plasmaPhysical Review Letters, 1974