The Experts below are selected from a list of 264 Experts worldwide ranked by ideXlab platform

U. Keller - One of the best experts on this subject based on the ideXlab platform.

  • Attosecond optical-field-enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, S. A. Sato, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors^ 1 , 2 to high-speed electro-optical switches^ 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime. Significant enhancement of carrier injection into the Conduction Band is observed for Gaas subjected to intense resonant near-infrared laser pumping. Attosecond-resolved investigation reveals the interplay between the intra- and interBand transitions.

  • attosecond optical field enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, S Sato, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors1,2 to high-speed electro-optical switches 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime.

F. Schlaepfer - One of the best experts on this subject based on the ideXlab platform.

  • Attosecond optical-field-enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, S. A. Sato, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors^ 1 , 2 to high-speed electro-optical switches^ 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime. Significant enhancement of carrier injection into the Conduction Band is observed for Gaas subjected to intense resonant near-infrared laser pumping. Attosecond-resolved investigation reveals the interplay between the intra- and interBand transitions.

  • attosecond optical field enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, S Sato, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors1,2 to high-speed electro-optical switches 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime.

L. Gallmann - One of the best experts on this subject based on the ideXlab platform.

  • Attosecond optical-field-enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, S. A. Sato, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors^ 1 , 2 to high-speed electro-optical switches^ 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime. Significant enhancement of carrier injection into the Conduction Band is observed for Gaas subjected to intense resonant near-infrared laser pumping. Attosecond-resolved investigation reveals the interplay between the intra- and interBand transitions.

  • attosecond optical field enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, S Sato, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors1,2 to high-speed electro-optical switches 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime.

A. Rubio - One of the best experts on this subject based on the ideXlab platform.

  • Attosecond optical-field-enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, S. A. Sato, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors^ 1 , 2 to high-speed electro-optical switches^ 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime. Significant enhancement of carrier injection into the Conduction Band is observed for Gaas subjected to intense resonant near-infrared laser pumping. Attosecond-resolved investigation reveals the interplay between the intra- and interBand transitions.

  • attosecond optical field enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, S Sato, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors1,2 to high-speed electro-optical switches 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime.

N. Hartmann - One of the best experts on this subject based on the ideXlab platform.

  • Attosecond optical-field-enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, S. A. Sato, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors^ 1 , 2 to high-speed electro-optical switches^ 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime. Significant enhancement of carrier injection into the Conduction Band is observed for Gaas subjected to intense resonant near-infrared laser pumping. Attosecond-resolved investigation reveals the interplay between the intra- and interBand transitions.

  • attosecond optical field enhanced carrier injection into the Gaas Conduction Band
    Nature Physics, 2018
    Co-Authors: F. Schlaepfer, M. Lucchini, M. Volkov, L. Kasmi, N. Hartmann, A. Rubio, L. Gallmann, S Sato, U. Keller
    Abstract:

    Resolving the fundamental carrier dynamics induced in solids by strong electric fields is essential for future applications, ranging from nanoscale transistors1,2 to high-speed electro-optical switches 3 . How fast and at what rate can electrons be injected into the Conduction Band of a solid? Here, we investigate the sub-femtosecond response of Gaas induced by resonant intense near-infrared laser pulses using attosecond transient absorption spectroscopy. In particular, we unravel the distinct role of intra- versus interBand transitions. Surprisingly, we found that despite the resonant driving laser, the optical response during the light–matter interaction is dominated by intraBand motion. Furthermore, we observed that the coupling between the two mechanisms results in a significant enhancement of the carrier injection from the valence into the Conduction Band. This is especially unexpected as the intraBand mechanism itself can accelerate carriers only within the same Band. This physical phenomenon could be used to control ultrafast carrier excitation and boost injection rates in electronic switches in the petahertz regime.