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WI1 - Attosecond Dynamics in Atoms and Solids Session Presider: Oliver D. Mücke
8:30-10:00 Salon IV
WI1.1 -
Attoclock Revisited on quantum Tunneling Time Invited
08:30-09:15
2017-10-04 08:30 2017-10-04 09:15 America/Denver Attoclock Revisited on quantum Tunneling Time Quantum tunneling time is a highly debated topic – we explain why. We discuss the attoclock technique to extracting tunneling delays with regards to the typical approximations such as the dipole approximation, non-adiabatic effects, photoelectron momenta at the tunnel exit, electron correlation and exit coordinate. Hilton Santa Fe Historic Plaza Salon IV

    U. Keller , ETH Zurich, Switzerland, C. Hofmann , Max Planck Institute for the Physics of Comjplex Systems, Germany A. Landsman , Max Planck Institute for the Physics of Comjplex Systems, Germany

    Quantum tunneling time is a highly debated topic – we explain why. We discuss the attoclock technique to extracting tunneling delays with regards to the typical approximations such as the dipole approximation, non-adiabatic effects, photoelectron momenta at the tunnel exit, electron correlation and exit coordinate.
WI1.2 -
Petahertz Optical Drive With Wide-bandgap Materials Invited
09:15-09:45
2017-10-04 09:15 2017-10-04 09:45 America/Denver Petahertz Optical Drive With Wide-bandgap Materials We studied petahertz electronic oscillations with 1.16-PHz frequency using gallium nitride (GaN) wide-bandgap semiconductor. An isolated attosecond pulse with coherent broadband spectrum reveals dipole oscillation with 860-as periodicity in the GaN electron and hole system. Hilton Santa Fe Historic Plaza Salon IV

    H. Mashiko , NTT Basic Research Labs., Atsugi-shi, Japan, K. Oguri , NTT Basic Research Laboratories Y. Chisuga , NTT Basic Research Laboratories/Yokohama National University, Japan H. Masuda , NTT Basic Research Laboratories/Yokohama National University, Japan T. Yamaguchi , NTT Basic Research Laboratories/Yokohama National University, Japan A. Suda , Tokyo University of Science, Japan I. Katayama , Yokohama National University, Japan J. Takeda , Yokohama National University, Japan H. Gotoh , NTT Basic Research Laboratories, Japan

    We studied petahertz electronic oscillations with 1.16-PHz frequency using gallium nitride (GaN) wide-bandgap semiconductor. An isolated attosecond pulse with coherent broadband spectrum reveals dipole oscillation with 860-as periodicity in the GaN electron and hole system.
WI1.3 -
Attosecond counter rotating wave effect in xenon driven by strong fields
09:45-10:00
2017-10-04 09:45 2017-10-04 10:00 America/Denver Attosecond counter rotating wave effect in xenon driven by strong fields Attosecond transient absorption spectroscopy is used for the ultrafast dynamics of Xe driven by strong fields, where the conventional rotating wave approximation breaks down. We present, for the first time, the real-time observation of the counter rotating wave effect in the highly excited 4d-1np xenon. Hilton Santa Fe Historic Plaza Salon IV

    D. KIM , POSTECH, Pohang, South Korea, M. Anand , POSTECH, Pohang, South Korea S. Pabst , Harvard-Smithsonian Center, Cambridge, MA, United States O. Kwon , POSTECH, Pohang, South Korea

    Attosecond transient absorption spectroscopy is used for the ultrafast dynamics of Xe driven by strong fields, where the conventional rotating wave approximation breaks down. We present, for the first time, the real-time observation of the counter rotating wave effect in the highly excited 4d-1np xenon.