Formation of trains of attosecond pulses via ionization switching of the resonant interaction between XUV radiation and IR-field-dressed atoms

ORAL

Abstract

Investigating processes unfolding on the attosecond time scale is one of the key aims of modern physics. Attosecond light pulses with carrier frequency in the vicinity of atomic resonances present themselves the major tool for study of such processes in atoms and molecules. Recently, we presented an analytical model describing formation of attosecond pulses from quasi-resonant quasi-monochromatic vacuum-ultraviolet (VUV) radiation in an atomic gas simultaneously irradiated by a moderately strong infrared (IR) laser field. Subcycle time-dependence of ionization rate of excited states of atoms is used to form attosecond pulses from VUV field. In this contribution we present the results of numerical solution of time-dependent Schrodinger equation for IR-dressed He atoms interacting with quasi-resonant XUV radiation. Our results demonstrate the possibility to form trains of pulses with pulse duration in the range of hundreds of attoseconds in atomic helium dressed by IR field. The results are in a rather good agreement with the analytical solution. Required parameters of IR dressing laser are achievable experimentally.

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Authors

  • Timur Akhmedzhanov

    Department of Physics and Astronomy, Texas A\&M University and Institute for Quantum Studies and Engineering, College Station, TX 77843-4242, USA

  • Darren Depoy

    University of Michigan, Univeristy of Michigan, Texas A\&M University, UC Riverside, University of Massachusetts, STScI, NOAO, University of Texas, Cyclotron Institute, Texas A\&M University, ENEA, Italy, INFN, Italy, University of Texas at Austin, TX, Cyclotron Institute, TAMU, TX, Cyclotron Institute TAMU, TX, Cyclotron Institute - Texas A\&M University, Texas A\&M Univ, Texas A\&M University, Baylor University, Department of Physics and Astronomy, Texas A\&M University, College Station, Texas, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240, China, Department of Materials Science and Engineering, Texas A\&M University, College Station, Texas, Department of Mechanical Engineering, Texas A\&M University, College Station, Texas, Texas State University, University of Texas at Arlington, Lawrence Berkeley National Laboratory, DESY, Department of Physics and Astronomy, Texas A\&M University, Department of Physics, Syracuse University, Department of Physics and Astronomy, Vanderbilt University, Texas A\&M University, Princeton University and Baylor University, Texas A\&M Univ at Qatar, Kazan Federal University, Max Planck Institute for Nuclear Physics, Institue for Quantum Science and Engineering (IQSE) and Department of Physics \& Astronomy, Texas A\&M University, College Station, Texas 77843, USA, MIT, Sandia National Laboratories, Albuquerque, New Mexico, Postgrad, ORNL, Muons Inc., Texas Lutheran University, West Virginia University, Lawrence Livermore National Laboratory, University of Kentucky, US Naval Academy, University of Dallas, U.S. Naval Academy, Univ of Texas, Arlington, Department of Physics, Texas A\&M University, College Station, TX 77845, Science and Petroleum Departments, Texas A\&M University in Qatar, Doha, Qatar, Rice University, Houston, Texas, USA, Department of Physics, Texas State University, Florida A\&M University, Texas A\&M University in Qatar, Doha, Qatar, Physics and Astronomy Dept., TCU, Geology Dept., TCU, Colorado College, University of Texas at El Paso, University of Texas at Brownsville, Rochester Institute of Technology, Baylor University, Texas A\&M, Princeton University, Baylor University, Princeton University, Texas A\&M University, Materials Science and Engineering and Department of Physics and Astronomy, Texas A\&M University; WPI-AIMR, Tohoku University, Japan, WPI-AIMR, Tohoku University, Department of Chemistry, Texas A\&M University, Materials Science and Engineering and Department of Physics and Astronomy, Texas A\&M University, WPI-AIMR, Tohoku University, Japan, Department of Physics and Astronomy, Texas A\&M University, College Station, Texas 77843, USA, Department of Physics and Astronomy, Texas A\&M University and WPI-Advanced Institute for Materials Research, Tohoku University, Japan, University of Texas at Austin, Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin, JILA, NIST, Department of Physics and Astronomy, Texas A\&M University and Institute for Quantum Studies and Engineering, College Station, TX 77843-4242, USA, Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov street, Nizhny Novgorod 603950, Russia, Department of Physics, University of Texas at Austin, Rice University, Texas A&M University

  • Darren Depoy

    University of Michigan, Univeristy of Michigan, Texas A\&M University, UC Riverside, University of Massachusetts, STScI, NOAO, University of Texas, Cyclotron Institute, Texas A\&M University, ENEA, Italy, INFN, Italy, University of Texas at Austin, TX, Cyclotron Institute, TAMU, TX, Cyclotron Institute TAMU, TX, Cyclotron Institute - Texas A\&M University, Texas A\&M Univ, Texas A\&M University, Baylor University, Department of Physics and Astronomy, Texas A\&M University, College Station, Texas, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240, China, Department of Materials Science and Engineering, Texas A\&M University, College Station, Texas, Department of Mechanical Engineering, Texas A\&M University, College Station, Texas, Texas State University, University of Texas at Arlington, Lawrence Berkeley National Laboratory, DESY, Department of Physics and Astronomy, Texas A\&M University, Department of Physics, Syracuse University, Department of Physics and Astronomy, Vanderbilt University, Texas A\&M University, Princeton University and Baylor University, Texas A\&M Univ at Qatar, Kazan Federal University, Max Planck Institute for Nuclear Physics, Institue for Quantum Science and Engineering (IQSE) and Department of Physics \& Astronomy, Texas A\&M University, College Station, Texas 77843, USA, MIT, Sandia National Laboratories, Albuquerque, New Mexico, Postgrad, ORNL, Muons Inc., Texas Lutheran University, West Virginia University, Lawrence Livermore National Laboratory, University of Kentucky, US Naval Academy, University of Dallas, U.S. Naval Academy, Univ of Texas, Arlington, Department of Physics, Texas A\&M University, College Station, TX 77845, Science and Petroleum Departments, Texas A\&M University in Qatar, Doha, Qatar, Rice University, Houston, Texas, USA, Department of Physics, Texas State University, Florida A\&M University, Texas A\&M University in Qatar, Doha, Qatar, Physics and Astronomy Dept., TCU, Geology Dept., TCU, Colorado College, University of Texas at El Paso, University of Texas at Brownsville, Rochester Institute of Technology, Baylor University, Texas A\&M, Princeton University, Baylor University, Princeton University, Texas A\&M University, Materials Science and Engineering and Department of Physics and Astronomy, Texas A\&M University; WPI-AIMR, Tohoku University, Japan, WPI-AIMR, Tohoku University, Department of Chemistry, Texas A\&M University, Materials Science and Engineering and Department of Physics and Astronomy, Texas A\&M University, WPI-AIMR, Tohoku University, Japan, Department of Physics and Astronomy, Texas A\&M University, College Station, Texas 77843, USA, Department of Physics and Astronomy, Texas A\&M University and WPI-Advanced Institute for Materials Research, Tohoku University, Japan, University of Texas at Austin, Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin, JILA, NIST, Department of Physics and Astronomy, Texas A\&M University and Institute for Quantum Studies and Engineering, College Station, TX 77843-4242, USA, Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov street, Nizhny Novgorod 603950, Russia, Department of Physics, University of Texas at Austin, Rice University, Texas A&M University