Femtosecond XUV transparency in light-coupled He doubly excited states.

M. Tarana; Chris H. Greene

doi:10.1364/LS.2011.LWC1

Frontiers in Optics 2011/Laser Science XXVII
OSA Technical Digest (Optica Publishing Group, 2011),
paper LWC1
•https://doi.org/10.1364/LS.2011.LWC1

Femtosecond XUV transparency in light-coupled He doubly excited states.

M. Tarana and Chris H. Greene

Laser Science 2011

San Jose, California United States
16–20 October 2011
ISBN: 978-1-55752-917-6

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Attosecond and Strong Field Science II (LWC)

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M. Tarana and C. H. Greene, "Femtosecond XUV transparency in light-coupled He doubly excited states.," in Frontiers in Optics 2011/Laser Science XXVII, OSA Technical Digest (Optica Publishing Group, 2011), paper LWC1.

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Abstract

Electromagnetically induced transparency-like behavior in extreme ultraviolet is studied theoretically, including the effect of laser dressing of He 2s2p(^1P^o) and 2p^2(^1S^e) autoionizing states by an intense 800 nm field. The method allows for a rigorous treatment of optical field ionization of these coupled autoionizing states into the N=2 continuum in addition to N=1. Our calculated transient absorption spectra show reasonably encouraging agreement with experiment.

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