RUS  ENG
Full version
JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2003 Volume 77, Issue 5, Pages 254–259 (Mi jetpl2746)

This article is cited in 10 papers

ATOMS, SPECTRA, RADIATIONS

Attosecond burst and high-harmonic generation in molecular ionization by ultrashort laser pulses

M. Yu. Emelina, M. Yu. Ryabikina, A. M. Sergeeva, M. D. Chernobrovtsevaa, T. Pfeiferb, D. Walterb, G. Gerberb

a Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod
b University of Würzburg

Abstract: It is shown that the efficiency of attosecond pulse and high-harmonic generation in the ionization of excited molecular structures by a powerful femtosecond optical pulse can appreciably exceed the efficiency of analogous processes in atomic systems. This is due to the presence of a delocalized electron wave-packet component in the nonequilibrium molecular states, resulting in an increase of the number of particles that are effectively involved in the bremsstrahlung generation in the course of recollisions of laser-accelerated electrons with molecular core. Calculations suggest that, by optimizing the nonlinear response of molecular systems in the ionization process, one can develop compact sources of coherent vacuum ultraviolet and X-ray radiation with luminance at a level that is presently achieved only at large-scale accelerator facilities with free-electron lasers.

PACS: 42.65.Ky

Received: 05.12.2002
Revised: 14.01.2003


 English version:
Journal of Experimental and Theoretical Physics Letters, 2003, 77:5, 212–216

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2025