Bulletin of the American Physical Society
46th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 60, Number 7
Monday–Friday, June 8–12, 2015; Columbus, Ohio
Session N4: Invited Session: Attosecond CondensedPhase Dynamics |
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Chair: Shambhu Ghimire, SLAC National Accelerator Laboratory Room: Union DE |
Thursday, June 11, 2015 10:30AM - 11:00AM |
N4.00001: Probing the relation between high harmonics from gases and solids Invited Speaker: Paul Corkum |
Thursday, June 11, 2015 11:00AM - 11:30AM |
N4.00002: High Harmonic Generation in Periodic Systems Invited Speaker: Misha Ivanov |
Thursday, June 11, 2015 11:30AM - 12:00PM |
N4.00003: High harmonic generation in rare gas solids Invited Speaker: David Reis There has recently been renewed interest in the interaction of strong optical fields with large band-gap solids. The response is known to involve the attosecond dynamics of the electrons and includes the generation of non-perturbative high-order harmonics. However, the detailed mechanism remain a matter of intense debate. Here we report on high harmonic generation in rare gas solids as compared to a dilute gas. The measured spectrum in the solid exhibits a secondary plateau and a subsequent high-energy cut-off that extends well beyond the gas phase, while the ellipticity dependence is simlar to the gas phase and suggests importance of coherent single-site recombination. [Preview Abstract] |
Thursday, June 11, 2015 12:00PM - 12:30PM |
N4.00004: Condensed Matter in Ultrafast and Superstrong Fields: Attosecond Phenomena Invited Speaker: Mark Stockman We discuss latest developments in theory and recent experimental results for a new class of phenomena in condensed matter optics when a strong optical field $\sim$ 1-3 V/{\AA} reversibly changes the solid within an optical cycle [1-7]. During a single-oscillation of a strong optical pulse, a dielectric undergoes a reversible transition to a semimetallic state, which follows the instantaneous optical field during time intervals on order of hundred attoseconds. Such a pulse drives ampere-scale currents in dielectrics and controls their properties, including optical absorption and reflection, extreme UV absorption, and generation of high harmonics [8] in a non-perturbative manner on a 100-as temporal scale. Applied to a metal, such a pulse causes an instantaneous and reversible loss of the metallic properties. We will also discuss or latest theoretical results on graphene, a semimetal, in a strong ultrashort pulse field [9, 10] revealing unique behavior inherent in graphene. These are fastest phenomena in optics unfolding within half period of light. They offer potential for petahertz-bandwidth signal processing, generation of high harmonics on a nanometer spatial scale, etc. \textbf{References} 1. M. Durach, A. Rusina, M. F. Kling, and M. I. Stockman, \textit{Metallization of Nanofilms in Strong Adiabatic Electric Fields}, Phys. Rev. Lett. \textbf{105}, 086803-1-4 (2010). 2. M. Durach, A. Rusina, M. F. Kling, and M. I. Stockman, \textit{Predicted Ultrafast Dynamic Metallization of Dielectric Nanofilms by Strong Single-Cycle Optical Fields}, Phys. Rev. Lett. \textbf{107}, 086602-1-5 (2011). 3. A. Schiffrin, T. Paasch-Colberg, N. Karpowicz, V. Apalkov, D. Gerster, S. Muhlbrandt, M. Korbman, J. Reichert, M. Schultze, S. Holzner, J. V. Barth, R. Kienberger, R. Ernstorfer, V. S. Yakovlev, M. I. Stockman, and F. Krausz, \textit{Optical-Field-Induced Current in Dielectrics}, Nature \textbf{493}, 70-74 (2013). 4. M. Schultze, E. M. Bothschafter, A. Sommer, S. Holzner, W. Schweinberger, M. Fiess, M. Hofstetter, R. Kienberger, V. Apalkov, V. S. Yakovlev, M. I. Stockman, and F. Krausz, \textit{Controlling Dielectrics with the Electric Field of Light}, Nature \textbf{493}, 75-78 (2013). 5. V. Apalkov and M. I. Stockman, \textit{Metal Nanofilm in Strong Ultrafast Optical Fields}, Phys. Rev. B \textbf{88}, 245438-1-7 (2013). 6. V. Apalkov and M. I. Stockman, \textit{Theory of Dielectric Nanofilms in Strong Ultrafast Optical Fields}, Phys. Rev. B \textbf{86}, 165118-1-13 (2012). 7. F. Krausz and M. I. Stockman, \textit{Attosecond Metrology: From Electron Capture to Future Signal Processing}, Nat. Phot. \textbf{8}, 205-213 (2014). 8. T. Higuchi, M. I. Stockman, and P. Hommelhoff, \textit{Strong-Field Perspective on High-Harmonic Radiation from Bulk Solids}, Phys. Rev. Lett. \textbf{113}, 213901-1-5 (2014). 9. H. K. Kelardeh, V. Apalkov, and M. I. Stockman, \textit{Wannier-Stark States of Graphene in Strong Electric Field}, Phys. Rev. B \textbf{90}, 085313-1-11 (2014). 10. H. K. Kelardeh, V. Apalkov, and M. I. Stockman, \textit{Graphene in Ultrafast and Superstrong Laser Fields}, Phys. Rev. B \textbf{91}, 045439-1-8 (2015). [Preview Abstract] |
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