High-resolution spectra of laser plasma light sources in the normal incidence XUV region

Abstract

In proper conditions, laser-produced plasmas from Hf, Yb, W, or Pb targets are found to produce true continuum emissions which are essentially line free when studied with the highest spectral resolution currently available in the ~300–1200-Å region. Examples of highly resolved absorption spectra taken in several orders of a 6.65-m spectrograph equipped with a 4800-groove/mm grating are included.