Frequency-sheared, time-delayed extreme-ultraviolet pulses produced by high-harmonic generation in argon

We report the production of frequency-sheared high harmonics in argon by control of the envelope and chirp of the electric field of the femtosecond driving laser pulse. Using the classic three-step model of high-harmonic generation, we established a direct link between the properties of the harmonic...

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Bibliographic Details
Published in:Optics letters 2005-07, Vol.30 (13), p.1731-1733
Main Authors: KORNELIS, W, HAURI, C. P, HEINRICH, A, HELBING, F. W, ANSCOMBE, M. P, SCHLUP, P, TISCH, J. W. G, BIEGERT, J, KELLER, U
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optics
Physics
Quantum optics
Strong-field excitation of optical transitions in quantum systems
multi-photon processes
dynamic stark shift
Ultrafast processes
optical pulse generation and pulse compression
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Summary:We report the production of frequency-sheared high harmonics in argon by control of the envelope and chirp of the electric field of the femtosecond driving laser pulse. Using the classic three-step model of high-harmonic generation, we established a direct link between the properties of the harmonics and the fully characterized driving pulses. A simulation of the single-atom response in the strong-field approximation confirms the simple picture and shows good agreement with the experimental results.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.30.001731