Analytic quantum-interference conditions in Coulomb corrected photoelectron holography
| Autor: | XuanYang Lai, A. Al-Jawahiry, C. Figueira de Morisson Faria, A. S. Maxwell |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Physics
Field (physics) Atomic Physics (physics.atom-ph) Holography FOS: Physical sciences Electron Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 010305 fluids & plasmas law.invention Schrödinger equation Computational physics Physics - Atomic Physics symbols.namesake law Side lobe Ionization 0103 physical sciences Coulomb symbols 010306 general physics Quantum |
| Popis: | We provide approximate analytic expressions for above-threshold ionization (ATI) transition probabilities and photoelectron angular distributions (PADs). These analytic expressions are more general than those existing in the literature and include the residual binding potential in the electron continuum propagation. They successfully reproduce the ATI side lobes and specific holographic structures such as the near-threshold fan-shaped pattern and the spider-like structure that extends up to relatively high photoelectron energies. We compare such expressions with the Coulomb quantum orbit strong-field approximation (CQSFA) and the full solution of the time-dependent Schr\"odinger equation for different driving-field frequencies and intensities, and provide an in-depth analysis of the physical mechanisms behind specific holographic structures. Our results shed additional light on what aspects of the CQSFA must be prioritized in order to obtain the key holographic features, and highlight the importance of forward scattered trajectories. Furthermore, we find that the holographic patterns change considerably for different field parameters, even if the Keldysh parameter is kept roughly the same. Comment: 28 pages, 10 figures. The figures have been simplified in order to comply with the arXiV size requirements |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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