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Observation of Subpicosecond X-Ray Emission from Laser-Cluster Interaction

Journal Article · · Physical Review Letters
; ; ; ; ;  [1]
  1. Universite Bordeaux I, CNRS, CEA, CELIA UMR 5107, 351 cours de la Liberation, Talence, F-33405 (France)

We present the first experimental evidence of the subpicosecond duration of x-ray pulses emitted from laser-irradiated clusters, demonstrating the suitability of such a debris free target for ultrafast x-ray science applications. The K-shell emission ({approx}3 keV) from large Ar clusters (6x10{sup 5} to 4x10{sup 6} atoms) is time resolved, when irradiated by ultrashort (40 fs to 5 ps) and intense laser pulses (10{sup 15-17} W/cm{sup 2}). The observations are supported by hydrodynamical and collisional-radiative calculations, that reproduce the extremely short x-ray pulse duration.

OSTI ID:
21132447
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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