Retrieval of Target Structure Information from Laser-Induced Photoelectrons by Few-Cycle Bicircular Laser Fields
By analyzing theoretical results from a numerical solution of the time-dependent Schrödinger equation for atoms in few-cycle bicircular laser pulses, we show that high-energy photoelectron momentum spectra can be used to extract accurate elastic scattering differential cross sections of the target ion with free electrons. We find that the retrieval range for a scattering angle with bicircular pulses is wider than with linearly polarized pulses, although the retrieval method has to be modified to account for different returning directions of the electron in the continuum. This result can be used to extend the range of applicability of ultrafast imaging techniques such as laser-induced electron diffraction and for the accurate characterization of laser pulses.
V. Hoang et al., "Retrieval of Target Structure Information from Laser-Induced Photoelectrons by Few-Cycle Bicircular Laser Fields," Physical Review A, vol. 95, no. 3, American Physical Society (APS), Mar 2017.
The definitive version is available at https://doi.org/10.1103/PhysRevA.95.031402
Keywords and Phrases
Elastic Scattering; Imaging Techniques; Laser Pulses; Photoelectron Spectroscopy; Photoelectrons; Photons, Differential Cross Section; High Energy Photoelectrons; Linearly Polarized; Momentum Spectra; Numerical Solution; Retrieval Methods; Scattering Angles; Target Structure, Atom Lasers
International Standard Serial Number (ISSN)
Article - Journal
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01 Mar 2017