Article
High harmonic interferometry of the Lorentz force in strong mid-infrared laser fields Public Deposited
https://scholar.colorado.edu/concern/articles/9306sz91j
- Abstract
- New J. Phys. 20, 053036 (2018) The interaction of intense mid-infrared laser fields with atoms and molecules leads to a range of new opportunities, from the production of bright, coherent radiation in the soft x-ray range to imaging molecular structures and dynamics with attosecond temporal and sub-angstrom spatial resolution. However, all these effects, which rely on laser-driven recollision of an electron removed by the strong laser field and the parent ion, suffer from the rapidly increasing role of the magnetic field component of the driving pulse: the associated Lorentz force pushes the electrons off course in their excursion and suppresses all recollision-based processes, including high harmonic generation, elastic and inelastic scattering. Here we show how the use of two non-collinear beams with opposite circular polarizations produces a forwards ellipticity which can be used to monitor, control, and cancel the effect of the Lorentz force. This arrangement can thus be used to re-enable recollision-based phenomena in regimes beyond the long-wavelength breakdown of the dipole approximation, and it can be used to observe this breakdown in high-harmonic generation using currently-available light sources.
- Creator
- Date Issued
- 2018-01-01
- Academic Affiliation
- Journal Title
- Journal Issue/Number
- 5
- Journal Volume
- 20
- Last Modified
- 2019-12-05
- Resource Type
- Rights Statement
- DOI
- ISSN
- 1367-2630
- Language
- License
Relationships
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Thumbnail | Title | Date Uploaded | Visibility | Actions |
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highHarmonicInterferometryOfTheLorentzForceInStrongMidI.pdf | 2019-12-05 | Public | Download | |
highHarmonicInterferometryOfTheLorentzForceInStrongMidI.pdf | 2019-12-05 | Public | Download |