|
This article is cited in 6 scientific papers (total in 6 papers)
Extremely strong fields and ultrashort optical pulses
Generation of an attosecond pulse based on collective spontaneous emission of a layer of three-level atoms excited by a pair of unipolar pulses
R. M. Arkhipovabc, M. V. Arkhipovab, I. Babushkinde, A. V. Pakhomovab, N. N. Rosanovbc a Saint Petersburg State University
b St. Petersburg National Research University of Information Technologies, Mechanics and Optics
c Ioffe Institute, St. Petersburg
d Institute of Quantum Optics, Leibniz University of Hannover, Hannover, Germany
e Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering-Innovation across Disciplines), Hannover, Germany
Abstract:
Recently, for the generation of extremely short pulses, a method was proposed for coherent control of the polarization of a medium, based on the excitation of atomic polarization oscillations and their subsequent arrest using a pair of ultra short pulses. The so-called stopped pulse of polarization of the medium, which appears in the interval between its excitation and de-excitation, can be a source of an extremely short radiation pulse. In this paper, the indicated possibility of generating an isolated attosecond ultraviolet pulse in a three-level resonant medium, the parameters of which correspond to a hydrogen atom excited by a pair of unipolar X-ray pulses, is considered theoretically. In this case, the generation mechanism is “antenna”, 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.
Keywords:
collective spontaneous emission, coherent control of atomic polarization, attosecond pulses, unipolar pulses, x-ray pulses, hydrogen atom.
Received: 22.06.2020 Revised: 22.06.2020 Accepted: 06.07.2020
Citation:
R. M. Arkhipov, M. V. Arkhipov, I. Babushkin, A. V. Pakhomov, N. N. Rosanov, “Generation of an attosecond pulse based on collective spontaneous emission of a layer of three-level atoms excited by a pair of unipolar pulses”, Optics and Spectroscopy, 128:11 (2020), 1723–1731; Optics and Spectroscopy, 128:11 (2020), 1857–1864
Linking options:
https://www.mathnet.ru/eng/os259 https://www.mathnet.ru/eng/os/v128/i11/p1723
|
Statistics & downloads: |
Abstract page: | 48 | Full-text PDF : | 18 |
|