Phys. Rev. Lett. 95, 153001 (2005) [4 pages]Two-Photon Detachment of Inner-Shell Electrons from Li-Received 27 April 2005; published 5 October 2005 We investigate two-photon detachment of an inner 1s electron from the 1s22s2 ground state of Li- using R-matrix Floquet theory. This detachment rate shows a noticeable structure due to shape resonances just above the lowest three doubly excited thresholds of Li. Two-photon detachment of one 1s electron is about twice as likely as two-photon detachment of (at least) one 2s electron. Two-photon detachment of one 1s electron may be observable experimentally through the detection of electrons with kinetic energies between 45 and 65 eV. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.153001
DOI:
10.1103/PhysRevLett.95.153001
PACS:
32.80.Rm, 31.15.Ar, 32.80.Gc
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