Vortex streets and honeycomb structures in photodetachment driven by linearly polarized few-cycle laser pulses

Autor:	J. Z. Kamiński, F. Cajiao Vélez, Liang-You Peng, Katarzyna Krajewska, Lei Geng
Rok vydání:	2020
Předmět:	Physics Phase (waves) Pulse duration Electron Laser 01 natural sciences 010305 fluids & plasmas Vortex law.invention Pulse (physics) Momentum Probability amplitude law Condensed Matter::Superconductivity 0103 physical sciences Atomic physics 010306 general physics
Zdroj:	Physical Review A. 102
ISSN:	2469-9934 2469-9926
DOI:	10.1103/physreva.102.043102
Popis:	Generation of electron vortices in photodetachment driven by linearly polarized laser pulses is demonstrated, both within the strong-field approximation and by numerically solving the time-dependent Schr\"odinger equation. The sensitivity of the resulting vortex patterns in the momentum distributions of photoelectrons to the laser pulse parameters (including the pulse duration, its intensity, and the carrier-envelope phase) is analyzed. It is shown that, for a nonzero carrier-envelope phase of the driving pulse, vortex structures in the probability amplitude of detachment occur, similar to von K\'arm\'an vortex streets in fluid mechanics. In addition, hexagonal regions of high probability (honeycomb patterns) are observed, with vortex-antivortex pairs located at their vertices.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a665a42623aa47af5b3d4cbb11b654cf https://doi.org/10.1103/physreva.102.043102 Zobrazit plný text záznamu