Strong field ionization tomography with two-color circularly polarized femtosecond laser fields

POSTER

Abstract

Recent experiments using two-color circularly polarized laser fields have demonstrated that high-harmonic generation (HHG), a versatile tabletop source of extreme ultraviolet (EUV) light, can be now extended to from linear to circular polarization. Here we present the first experiments using these uniquely polarized light fields to study strong field ionization (SFI), which is the complementary process to HHG. Using a velocity map imaging photoelectron spectroscopy and tomographic reconstruction techniques, we identify low-energy structures in the 3D photoelectron angular distributions that correspond to the rescattering of electrons with the ion. The observation of rescattering structures confirms the proposed explanation for HHG under two-color fields and paves the way for next-generation spectroscopies to investigate molecular structure.

Authors

  • Maithreyi Gopalakrishnan

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Chris Mancuso

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Daniel Hickstein

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Patrick Grychtol

    • JILA, University of Colorado, Boulder, CO 80309
    • JILA and Department of Physics, University of Colorado Boulder and NIST
    • JILA, University of Colorado, Boulder, CO 80309, USA

  • Ronny Knut

    • Uppsala University - Sweden
    • National Institute of Standards and Technology
    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Franklin Dollar

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Dmitriy Zusin

    • JILA, University of Colorado, Boulder, CO 80309
    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Christian Gentry

    • JILA, University of Colorado, Boulder, CO 80309
    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Emrah Turgut

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Jennifer Ellis

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Henry Kapteyn

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Margaret Murnane

    • JILA and Department of Physics, University of Colorado Boulder and NIST

  • Ofer Kfir

    • Solid State Institute and Physics Department, Technion

  • Oren Cohen

    • Solid State Institute and Physics Department, Technion

  • Avner Fleischer

    • Solid State Institute and Physics Department, Technion and Department of Physics and Optical Engineering, Ort Braude College

  • Xiao-Min Tong

    • Division of Material Science, Faculty of Pure and Applied Science, University of Tsukuba

  • Ming-Chang Chen

    • Institute of Photonics Technologies, National Tsing Hua University