Soft x-ray spectra produced by subpicosecond laser-double-pulses

Journal Article · Mon Nov 18 04:00:00 EST 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.105902· OSTI ID:6378471

Teubner, U; Kuehnle, G; Schaefer, F P ^[1]

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1. Max-Planck-Institut fuer Biophysiklaische Chemie, Abteilung Laserphysik, Am Fassberg, D-3400 Goettingen (Germany)

Soft x-ray spectra generated on flat Al targets by a 500 fs KrF* laser pulse (intensity 5.3{times}10{sup 15} W/cm{sup 2}), preceded by a prepulse of the {ital same} pulse duration, have been measured as a function of the pulse separation and the prepulse intensity. It was found that not only the total x-ray emission was much stronger when the prepulse was present but, in particular, lines in the shorter wavelength region had a higher intensity than without prepulse, and were strongly dependent on the time separation between the prepulse and the main pulse.

• OSTI ID: 6378471
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:21; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

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74 ATOMIC AND MOLECULAR PHYSICS
CHEMICAL ANALYSIS
ECONOMIC ANALYSIS
ECONOMICS
ELECTROMAGNETIC RADIATION
EXCIMER LASERS
GAS LASERS
INPUT-OUTPUT ANALYSIS
IRRADIATION
KRYPTON CHLORIDE LASERS
LASER-PRODUCED PLASMA
LASERS
NONDESTRUCTIVE ANALYSIS
PLASMA
PULSED IRRADIATION
RADIATIONS
SPECTRA
ULTRAVIOLET RADIATION
X-RAY EMISSION ANALYSIS
X-RAY SPECTRA