Photocurrent-induced harmonics in nanostructures
- authored by
- Ihar Babushkin, Anton Husakou, Liping Shi, Ayhan Demircan, Milutin Kovacev, Uwe Morgner
- Abstract
Photocurrent-induced harmonics appear in gases and solids due to tunnel ionization of electrons in strong fields and subsequent acceleration. In contrast to three-step harmonic emission, no return to the parent ions is necessary. Here we show that the same mechanism produces harmonics in metallic nanostructures in strong fields. Furthermore, we demonstrate how strong local field gradient, appearing as a consequence of the field enhancement, affects photocurrent-induced harmonics. This influence can shed light at the state of electron as it appears in the continuum, in particular, to its initial velocity.
- Organisation(s)
-
Institute of Quantum Optics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
- External Organisation(s)
-
Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy im Forschungsbund Berlin e.V. (MBI)
Xidian University
- Type
- Article
- Journal
- Nanophotonics
- ISSN
- 2192-8606
- Publication date
- 27.01.2025
- Publication status
- E-pub ahead of print
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Biotechnology, Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
- Electronic version(s)
-
https://doi.org/10.1515/nanoph-2024-0610 (Access:
Open)
