Generation of an Attosecond Pulse Based on Collective Spontaneous Radiation Emission of a Layer of Three-Level Atoms Excited by a Pair of Unipolar Pulses
Abstract
Abstract: A method of coherent controlling the polarization of a medium has been proposed recently for the generation of extremely short pulses. The method is based on the excitation of atomic polarization oscillations and their subsequent stop using a pair of ultrashort pulses. The so-called stopped pulse of the polarization of a medium, which arises in the interval between its excitation and deexcitation, can be a source of an extremely short radiation pulse. In this work, the above-indicated possibility of generation of an isolated attosecond ultraviolet pulse in a three-level resonant medium whose parameters correspond to a hydrogen atom excited by a pair of unipolar X-ray pulses is considered theoretically. In this case, the generation mechanism is of the antenna-type, that is, it is caused by the collective spontaneous emission of pre-phased atoms in the absence of a noticeable decay of their free polarization.
Details
- Organisationseinheit(en)
-
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme
Institut für Quantenoptik
- Externe Organisation(en)
-
Staatliche Universität Sankt Petersburg
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
- Typ
- Artikel
- Journal
- Optics and spectroscopy
- Band
- 128
- Seiten
- 1857-1864
- Anzahl der Seiten
- 8
- ISSN
- 0030-400X
- Publikationsdatum
- 2020
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Elektronische, optische und magnetische Materialien, Atom- und Molekularphysik sowie Optik
- Elektronische Version(en)
-
https://doi.org/10.1134/S0030400X20110028 (Zugang:
Geschlossen
)
