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    Nonlinear transparency window for ultraintense femtosecond laser pulses in the atmosphere

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    PhysRevA.100.023832.pdf
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    Author
    Panov, Nikolay A.
    Shipilo, Daniil E.
    Saletsky, Alexander M.
    Liu, Weiwei
    Polynkin, Pavel G.
    Kosareva, Olga G.
    Affiliation
    Univ Arizona, Coll Opt Sci
    Issue Date
    2019-08-21
    
    Metadata
    Show full item record
    Publisher
    AMER PHYSICAL SOC
    Citation
    Panov, N. A., Shipilo, D. E., Saletsky, A. M., Liu, W., Polynkin, P. G., & Kosareva, O. G. (2019). Nonlinear transparency window for ultraintense femtosecond laser pulses in the atmosphere. Physical Review A, 100(2), 023832.
    Journal
    PHYSICAL REVIEW A
    Rights
    Copyright © 2019 American Physical Society.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    We have found the optimum range of driver wavelengths for mid-infrared ultraintense femtosecond pulses undergoing filamentation in atmospheric air. This wavelength range between 3.1 and 3.5μm forms a nonlinear transparency window identified through a diligent scan of pulse central wavelengths in the range 2.2–4.7μm with a best resolution of 5 nm. Each of 123 wavelengths scanned corresponds to the solution of the full three-dimensional + time pulse propagation and filamentation problem on a 7–19 m path in air. Due to the discovered universal asymmetric character of the nonlinearly enhanced linear absorption in the vicinity of atmospheric molecular band, the optimum driver wavelength belongs to the long-wavelength side of the band.
    ISSN
    2469-9926
    DOI
    10.1103/physreva.100.023832
    Version
    Final published version
    Sponsors
    Russian Science Foundation [18-12-00422]; National Key Research and Development Program [2018YFB0504400]; 111 Project [B16027]; U.S. AFOSR under MURI [FA9550-16-1-0013]
    ae974a485f413a2113503eed53cd6c53
    10.1103/physreva.100.023832
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