Intense-Laser Solid State Physics: Unraveling the Difference between Semiconductors and Dielectrics

Physical Review Letters
C R McDonaldT Brabec

Abstract

Experiments on intense laser driven dielectrics have revealed population transfer to the conduction band to be oscillatory in time. This is in stark contrast to ionization in semiconductors and is currently unexplained. Current ionization theories neglect coupling between the valence and conduction band and therewith, the dynamic Stark shift. Our single-particle analysis identifies this as a potential reason for the different ionization behavior. The dynamic Stark shift increases the band gap with increasing laser intensities, thus suppressing ionization to an extent where virtual population oscillations become dominant. The dynamic Stark shift plays a role dominantly in dielectrics which, due to the larger band gap, can be exposed to significantly higher laser intensities.

References

Mar 1, 1994·Physical Review. a·M LewensteinP B Corkum
Aug 1, 1994·Physical Review. B, Condensed Matter·K A ProninA A Ovchinnikov
Dec 17, 2004·Nature·Mehmet Fatih YanikAdela Ben-Yakar
Jul 8, 2011·Nature·Michael KrügerPeter Hommelhoff
Mar 31, 2012·Nature·B ZaksM S Sherwin
Dec 12, 2012·Nature·Martin SchultzeFerenc Krausz
Dec 12, 2012·Nature·Agustin SchiffrinFerenc Krausz
Aug 30, 2014·Physical Review Letters·G VampaT Brabec
Oct 11, 2014·Physical Review Letters·P A Zhokhov, A M Zheltikov
Dec 17, 2014·Science·Martin SchultzeStephen R Leone
May 29, 2015·Nature·T T LuuE Goulielmakis
Jun 26, 2015·Nature·G VampaP B Corkum
Nov 21, 2015·Physical Review Letters·G VampaP B Corkum

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Citations

Dec 28, 2019·Optics Express·Jiapeng LiPeixiang Lu
Sep 7, 2018·Optics Express·Liang LiPeixiang Lu
Dec 9, 2017·Physical Review Letters·C R McDonaldT Brabec

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