Phys. Rev. Lett. 42, 1127–1130 (1979)Free-Free Transitions Following Six-Photon Ionization of Xenon AtomsReceived 29 January 1979; published in the issue dated 23 April 1979 The energy spectrum of electrons produced by multiphoton ionization of xenon atoms has been analyzed with a retarding potential technique. We have shown that the discrete absorption of photons above the six-photon ionization threshold was observable under specified conditions. A simple model based upon inverse bremsstrahlung gives a resonable agreement with the experiments. © 1979 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.42.1127
DOI:
10.1103/PhysRevLett.42.1127
PACS:
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