Single-attosecond pulse generation using a seed harmonic pulse train

Journal Article · Thu Feb 15 00:00:00 EST 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.021801· OSTI ID:20982057

Ishikawa, Kenichi L; Takahashi, Eiji J; Midorikawa, Katsumi ^[1]

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1. Department of Quantum Engineering and Systems Science, Graduate School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan and PRESTO - Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Honcho 4-1-8, Kawaguchi-shi, Saitama 332-0012 (Japan)

We propose a method to generate a single-attosecond soft-x-ray or extreme ultraviolet pulse by use of two infrared (IR) laser pulses of different wavelengths, neither of which alone is sufficiently short for single-pulse generation. Our simulations based on the time-dependent Schroedinger equation show that, when a harmonic pulse train generated by one IR laser field is superposed with the other driving laser and applied to a target atom, only one pulse in the train significantly boosts harmonic generation and acts as an attosecond enhancement gate for isolated pulse generation.

• OSTI ID: 20982057
• Journal Information: Physical Review. A, Vol. 75, Issue 2; Other Information: DOI: 10.1103/PhysRevA.75.021801; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BEAMS
EXTREME ULTRAVIOLET RADIATION
HARMONIC GENERATION
INFRARED RADIATION
LASER RADIATION
OPTICS
PULSES
SCHROEDINGER EQUATION
SIMULATION
SOFT X RADIATION
TIME DEPENDENCE
WAVELENGTHS