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WI3 - Controlling Electronic Dynamics in Solids Session Presider: François Légaré
1:30-3:00 Salon IV
WI3.1 -
Ultrafast Control of Electrons in Materials with the Electric Field of Light Invited
01:30-02:00
2017-10-04 01:30 2017-10-04 02:00 America/Denver Ultrafast Control of Electrons in Materials with the Electric Field of Light Electronics technologies rely on the control of electric current in solid-state devices. Here, we review the feasibility of generating and controlling electric current in semiconductors and insulators with few-cycle optical waveforms, within a single cycle of light, and on a timescale of 1 femtosecond. Hilton Santa Fe Historic Plaza Salon IV

    A. Schiffrin , Monash University, Clayton, Australia

    Electronics technologies rely on the control of electric current in solid-state devices. Here, we review the feasibility of generating and controlling electric current in semiconductors and insulators with few-cycle optical waveforms, within a single cycle of light, and on a timescale of 1 femtosecond.
WI3.2 -
Lightwave-driven Electron Dynamics in Graphene Invited
02:00-02:30
2017-10-04 02:00 2017-10-04 02:30 America/Denver Lightwave-driven Electron Dynamics in Graphene We show that two-cycle laser pulses generate carrier-envelope-phase dependent currents in graphene. The current direction exhibits a reversal with increasing peak field strength, indicating that the electron dynamics turn into the strong-field regime. In this regime, electron dynamics are governed by sub-optical-cycle Landau-Zener-Stückelberg interference. Hilton Santa Fe Historic Plaza Salon IV

    T. Higuchi , FAU Erlangen-Nurnberg, Germany

    We show that two-cycle laser pulses generate carrier-envelope-phase dependent currents in graphene. The current direction exhibits a reversal with increasing peak field strength, indicating that the electron dynamics turn into the strong-field regime. In this regime, electron dynamics are governed by sub-optical-cycle Landau-Zener-Stückelberg interference.
WI3.3 -
Universality of ultrafast semi-metallization in dielectrics in PHz domain
02:30-02:45
2017-10-04 02:30 2017-10-04 02:45 America/Denver Universality of ultrafast semi-metallization in dielectrics in PHz domain The ultrafast semimetalization by light field of various materials have been studied. Despite of their different physical properties, similar semimetallization behavior has been observed, which can be well explained by Wannier Stark localization with Zener type tunneling, taking interband and intraband transition into account. Hilton Santa Fe Historic Plaza Salon IV

    D. KIM , POSTECH, Pohang, South Korea, O. Kwon , POSTECH, Pohang, South Korea V. Apalkov , Georgia State University, Atlanta, GA, United States M. Stockman , Georgia State University, Atlanta, GA, United States

    The ultrafast semimetalization by light field of various materials have been studied. Despite of their different physical properties, similar semimetallization behavior has been observed, which can be well explained by Wannier Stark localization with Zener type tunneling, taking interband and intraband transition into account.
WI3.4 -
Spectral Broadening and Pulse Compression of a High Average Power Yb:KGW Laser
02:45-03:00
2017-10-04 02:45 2017-10-04 03:00 America/Denver Spectral Broadening and Pulse Compression of a High Average Power Yb:KGW Laser We investigate the broadening and compression of high average power near-infrared pulses from a Yb:KGW laser amplifier that undergo self-phase modulation in a series of thin fused silica plates. The efficiency of the technique is investigated through spectral and temporal characterization of the broadened pulses. Hilton Santa Fe Historic Plaza Salon IV

    J. Beetar , Dept. Physics, UCF, Orlando, FL, United States

    We investigate the broadening and compression of high average power near-infrared pulses from a Yb:KGW laser amplifier that undergo self-phase modulation in a series of thin fused silica plates. The efficiency of the technique is investigated through spectral and temporal characterization of the broadened pulses.