SPECTRAL ANALYSIS OF THE BACKSCATTERED LIGHT FROM A LASER-PRODUCED PLASMA

Abstract
The backscattered light from a laser‐produced plasma has been spectrally analyzed by means of a grating monochromator. The incident‐laser beam has a smooth spectrum of 37‐Å half‐width. For incident‐power densities higher than 1.5 × 1012 W/cm2, the back‐scattered spectrum consists of discrete lines, equally spaced, on the short‐wavelength side of the maximum of the incident spectrum.