Back- and side-scattering of light are investigated simultaneously with self-focusing in laser produced spark in air. Spectral and temporal investigations of the scattered light give detailed information of the plasma development. The fact that the plasma propagation towards the focusing lens is slowed down when the forward focused narrow pulse appears, and that the propagation can be explained by a detonation wave confirm that the pulse narrowing is a consequence of self-focusing.
ASJC Scopus subject areas
- Physics and Astronomy(all)