N2 laser (1 bar) induced micro metal plasma capable of igniting combustible mixtures
- 15 July 1977
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 31 (2) , 66-67
- https://doi.org/10.1063/1.89592
Abstract
On the surface of a Cu target irradiated by a uv N2 laser (TEA, pulse duration 300 ps, peak power 1 MW) a metallic plasma is generated due to the high brightness of the laser operating at atmospheric pressure. An interferometric study also using subnanosecond pulses from a N2 laser (1 bar) demonstrates the development of shock wave and plasma with high temporal and spatial resolution. The plasma with an initial pressure of 2000 bar and a temperature of 30 000 K is capable of igniting a combustible mixture of CH4‐O2. A new method for optical synchronization is well proved, delivering pictures as soon as 30 ns after plasma onset.Keywords
This publication has 4 references indexed in Scilit:
- UV laser triggering of spark gaps by two-quantum photoelectric effectPhysics Letters A, 1975
- Compact high power subnanosecond nitrogen and “open air” lasers at 760 torrPhysics Letters A, 1975
- Time Constants of Spark Discharges Initiated by a Gas-Laser Beam of λ = 0.3371 μSoviet Journal of Quantum Electronics, 1973
- A review of laser-triggered switchingProceedings of the IEEE, 1971