ANOMALOUS INTENSITIES OF THE RESONANCE LINES OF NE-LIKE IONS IN PLASMA PRODUCED BY A PICOSECOND LASER-PULSE

Anomalous structure of the intensities of the spectral lines of the Ne -like ions CuXX and GeXXIII, emitted by a plasma produced by picosecon d laser pulses with flux densities of up to 2X10(18) W/cm(2), was reco rded for the first time. It is shown that the maximum of the emission spectra of these ions occurs from the region of the plasma where the d ensity is much higher than the critical density for the wavelength of the heating laser radiation. (C) 1995 American Institute of Physics.