Interferometry and luminosity measurements on a CO2 laser plasma focus

摘要

This paper presents an interferometry study of a CO2 laser plasma focus created in a 1‐cm copper annular target. The average electron density measured on the plasma axis is approximately ne∼1.6×1018 cm-3. Spatial and temporal plasma luminosity measurements suggest a simple model for the plasma motion. This laser‐produced plasma has an axis and a plane of symmetry which make it an interesting subject for further studies on laser plasma interactions.