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  • Generation of extended filaments of femtosecond pulses in air by use of a single-step phase plate

    Author(s)
    Fu, Yuxi
    Xiong, Hui
    Xu, Han
    Yao, Jinping
    Zeng, Bin
    Chu, Wei
    Cheng, Ya
    Xu, Zhizhan
    Liu, Weiwei
    Chin, See Leang
    Griffith University Author(s)
    Xu, Han
    Year published
    2009
    Metadata
    Show full item record
    Abstract
    We experimentally demonstrate that by use of a phase plate that is placed between an adjustable aperture and a focusing lens, the length of the filament can be dramatically extended in air with a femtosecond laser pulse. In addition, the far-field beam profile captured after the filament indicates that the supercontinuum is strongly confined on axis, and a single filament appears to be attainable at relatively high input pulse power when the phase plate is used.We experimentally demonstrate that by use of a phase plate that is placed between an adjustable aperture and a focusing lens, the length of the filament can be dramatically extended in air with a femtosecond laser pulse. In addition, the far-field beam profile captured after the filament indicates that the supercontinuum is strongly confined on axis, and a single filament appears to be attainable at relatively high input pulse power when the phase plate is used.
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    Journal Title
    Optics Letters
    Volume
    34
    Issue
    23
    DOI
    https://doi.org/10.1364/OL.34.003752
    Subject
    Nonlinear Optics and Spectroscopy
    Optical Physics
    Quantum Physics
    Electrical and Electronic Engineering
    Publication URI
    http://hdl.handle.net/10072/42771
    Collection
    • Journal articles

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