High-order harmonic generation driven by metal nanotip photoemission: theory and simulations
| Autor: | Peter Hommelhoff, T. Shaaran, Maciej Lewenstein, Jose Antonio Pérez-Hernández, Michael Krüger, Marcelo F. Ciappina |
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| Rok vydání: | 2013 |
| Předmět: |
Physics
Photon Atomic Physics (physics.atom-ph) FOS: Physical sciences Electron Laser 7. Clean energy 01 natural sciences Atomic and Molecular Physics and Optics Physics - Atomic Physics 010305 fluids & plasmas law.invention Dipole law Extreme ultraviolet 0103 physical sciences Femtosecond High harmonic generation Physics::Atomic Physics Atomic physics 010306 general physics Quantum Physics - Optics Optics (physics.optics) |
| Zdroj: | Physical Review A |
| DOI: | 10.48550/arxiv.1309.0349 |
| Popis: | We present theoretical predictions of high-order harmonic generation (HHG) resulting from the interaction of short femtosecond laser pulses with metal nanotips. It has been demonstrated that high energy electrons can be generated using nanotips as sources; furthermore the recollision mechanism has been proven to be the physical mechanism behind this photoemission. If recollision exists, it should be possible to convert the laser-gained energy by the electron in the continuum in a high energy photon. Consequently the emission of harmonic radiation appears to be viable, although it has not been experimentally demonstrated hitherto. We employ a quantum mechanical time dependent approach to model the electron dipole moment including both the laser experimental conditions and the bulk matter properties. The use of metal tips shall pave a new way of generating coherent XUV light with a femtosecond laser field. |
| Databáze: | OpenAIRE |
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