Electron rescattering using laser-enhancing nanostructures is a topic of particular interest for specialized high-brightness cathodes and attosecond high-harmonic generation. With ever-increasing ponderomotive amplitudes, the structure-induced longitudinal field profile is becoming more impactful on achievable energies. Using a classical approach, we investigate the limiting energies of electron emission and high-harmonic generation from nanostructures in the high-field regime. We perform generalized calculations for these cutoff energies for various structures by taking into account their particular spatial field profiles. We provide the peak electron emission and scattering energies as functions of the spatial adiabaticity parameter for decaying field profiles of the form
This content will become publicly available on May 1, 2024
- Award ID(s):
- 2110462
- NSF-PAR ID:
- 10424343
- Date Published:
- Journal Name:
- Journal of Physics: Conference Series
- Volume:
- 2494
- Issue:
- 1
- ISSN:
- 1742-6588
- Page Range / eLocation ID:
- 012018
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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