MEASUREMENTS AND SIMULATIONS OF THE INTENSITY AND SHAPE OF THE HYDROGENIC A1 RESONANCE LINE (1S(2)S-2P(2)P) IN LASER-PRODUCED-PLASMAS
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 54:1-2 (1995) 419-425
NOVEL PLASMA SOURCE FOR DENSE-PLASMA EFFECTS
PHYSICAL REVIEW LETTERS 74:18 (1995) 3616-3619
ORTHOGONAL STRAINS AND ONSET OF PLASTICITY IN SHOCKED LIF CRYSTALS
PHYSICAL REVIEW B 52:1 (1995) 8-11
Optical ionization and heating of gases by intense picosecond KrF laser radiation
LASER PART BEAMS 13:1 (1995) 19-31
Abstract:
We report on multiphoton ionization experiments using picosecond (ps) and sub-ps W-laser radiation at focused intensities up to 10(18) W/cm(2). The experiments are concerned with determining the electron temperature of optically ionized gases produced by intense KrF lasers. Thomson scattering, stimulated Raman scattering (SRS), and X-ray emission measurements have been made and compared with modeling calculations of heating. A particular objective is to identify the respective roles of above-threshold ionization, nonlinear inverse bremsstrahlung absorption, and SRS in determining the temperature of the electrons. Results for 350-fs pulses are compared with previous measurements for 12-ps pubes (for which strikingly different behavior is observed). The importance of using sub-ps, short-wavelength lasers to minimize electron temperature is confirmed.PLASMA TEMPERATURE IN OPTICAL-FIELD IONIZATION OF GASES BY INTENSE ULTRASHORT PULSES OF ULTRAVIOLET-RADIATION
PHYSICAL REVIEW LETTERS 74:4 (1995) 554-557