Quantum path contribution to high-order harmonic spectra

Brunetti, E. and Issac, R. and Jaroszynski, D.A. (2008) Quantum path contribution to high-order harmonic spectra. Physical Review A, 77 (2). 023422-1-023422-6. ISSN 1050-2947 (http://dx.doi.org/10.1103/PhysRevA.77.023422)

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Abstract

Ultrashort pulses of uv and soft x-ray radiation with durations ranging from femtoseconds to attoseconds can be produced as high-order harmonics of the fundamental frequency of a laser beam focused into gas. Applications to fields such as spectroscopy and attosecond metrology require the control and characterization of spectral and spatial properties of the emitted radiation. These are determined by both single atom and macroscopic response of the interaction medium to the laser field. Here we present evidence that microscopic effects have a larger influence than previously thought, and can induce a splitting and a frequency shift of the harmonic lines. These results not only offer a direct diagnostic for high-order harmonic generation, but also enable us to better tune the parameters of the produced radiation, while giving a deeper insight into the fundamental physics underlying this nonlinear optical process. © 2008 The American Physical Society

ORCID iDs

Brunetti, E. ORCID logoORCID: https://orcid.org/0000-0001-8302-9762, Issac, R. and Jaroszynski, D.A. ORCID logoORCID: https://orcid.org/0000-0002-3006-5492;
  • Item type:Article
    ID code:17095
    Dates:
    Date
    Event
    February 2008
    Published
    Notes:http://suprimo.lib.strath.ac.uk/primo_library/libweb/action/display.do?ct=display&doc=SUVOY607723&indx=1&frbg=&dum=true&vid=SUVU01&vl(54032236UI0)=lsr02&vl(96071691UI1)=all_items&srt=rank&indx=1&dstmp=1272656152924&tab=local&ct=search&scp.scps=scope%3A(SU)&vl(freeText0)=Physical%20Review%20A%3A%20Atomic%2C%20Molecular%20and%20Optical%20Physics&fn=search&mode=Basic&dscnt=0
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:30 Apr 2010 19:49
    Last modified:11 Nov 2024 09:20
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/17095
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