Field-cycle-resolved photoionization in solids

Field-cycle-resolved photoionization in solids

The Keldysh theory of photoionization in a solid dielectric is generalized to the case of arbitrarily short driving pulses of arbitrary pulse shape. We derive a closed-form solution for the nonadiabatic ionization rate in a transparent solid with a periodic dispersion relation, which reveals ultrafa...

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Veröffentlicht in:Physical review letters 2014-09, Vol.113 (13), p.133903-133903, Article 133903
Hauptverfasser: Zhokhov, P A, Zheltikov, A M
Format: Artikel
Sprache:eng
Schlagworte:
Constraining
Dielectrics
Dispersions
Exact solutions
Ionization
Mathematical analysis
Photoionization
Pulse shape
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Zusammenfassung:The Keldysh theory of photoionization in a solid dielectric is generalized to the case of arbitrarily short driving pulses of arbitrary pulse shape. We derive a closed-form solution for the nonadiabatic ionization rate in a transparent solid with a periodic dispersion relation, which reveals ultrafast ionization dynamics within the field cycle and recovers the key results of the Keldysh theory in the appropriate limiting regimes.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.113.133903