Generation of an Attosecond Pulse in Helium Excited by Half-Cycle X-Ray Pulses

verfasst von

R. M. Arkhipov, M. V. Arkhipov, I. Babushkin, A. V. Pakhomov, N. N. Rosanov

Abstract

Abstract: Conventionally, attosecond pulses are obtained using generation of high-order optical harmonics upon excitation of various media by femtosecond laser pulses with the central frequency in the infrared range. Here, we consider theoretically an alternative possibility of obtaining an isolated extreme ultraviolet (XUV) attosecond pulse in a thin layer of helium atoms excited by a pair of half-cycle (quasi-unipolar) X-ray pulses. The approach is based on the free polarization decay of an atomic medium. An analogy of the processes under consideration with the phenomenon of superradiance is discussed.

Organisationseinheit(en)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

Staatliche Universität Sankt Petersburg
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
RAS - Ioffe Physico Technical Institute

Typ

Artikel

Journal

Optics and spectroscopy

Band

128

Seiten

529-535

Anzahl der Seiten

7

ISSN

0030-400X

Publikationsdatum

04.2020

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/S0030400X20040025 (Zugang: Geschlossen)