High-Efficiency Single Attosecond Pulse Generation With a Long-Wavelength Pulse Assisted by a Weak Near-Infrared Pulse

Author

Kovacs, Katalin ; Tosa, Valer ; Major, Balazs ; Balogh, Emeric ; Varju, Katalin

Author_Institution

Nat. Inst. for R&D of Isotopic & Mol. Technol., Cluj-Napoca, Romania

Volume

21

Issue

5

fYear

2015

fDate

Sept.-Oct. 2015

Firstpage

1

Lastpage

7

Abstract

We model two-color high-order harmonic generation using a full 3-D nonadiabatic model and show that the presence of a weak perturbative near infrared pulse assisting a strong pulse of long wavelength increases the high-harmonic yield with one order of magnitude in the whole spectral range up to 160 eV. In addition, we demonstrate that it is possible to obtain a single attosecond pulse at the exit of the interaction region even by starting from two laser pulses of 50 fs each.

Keywords

optical harmonic generation; optical pulse generation; electron volt energy 160 eV; full 3-D nonadiabatic model; high-efficiency single attosecond pulse generation; high-harmonic yield; interaction region; laser pulses; long-wavelength pulse; order of magnitude; strong pulse; time 50 fs; two-color high-order harmonic generation; weak perturbative near infrared pulse; Frequency conversion; Harmonic analysis; Ionization; Laser beam cutting; Optical pulses; Solid modeling; Trajectory; 3D simulation; High-order harmonic generation; high-order harmonic generation; phase-matching; single attosecond pulse; trajectory analysis;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2015.2411580

Filename

7056492