Characteristics of amplification of ultrashort laser pulses in excimer media

F. Kannari, M. Obara

    研究成果: Conference article査読

    抄録

    Energy extraction in XeCl amplifier is theoretically studied for 0.16- and 3-ps initial laser pulse durations. Since an amplification gain is defined by the degree of matching between a gain spectrum and a propagating laser pulse spectrum, when a laser pulse is amplified by a gain medium with a multilined and inhomogeneously broadened spectrum, the saturation behavior of the amplified energy depends on characteristics of change in the laser spectrum during the amplification. Therefore, a saturation energy cannot be simply defined as a unique value for certain initial laser pulsewidth, and depends on amplification history of the pulse, amplified laser energy level, and initial carrier frequency. When a laser pulse is amplified to extremely high energy level (> 5 mJ/cm2), the laser pulse spectrum, which is filtered by the gain spectrum in small-signal amplification regime, is nonlinearly distorted and tends to shift its peak to the red spectrum side.

    本文言語English
    ページ(範囲)85-89
    ページ数5
    ジャーナルProceedings of SPIE - The International Society for Optical Engineering
    1397
    pt 1
    出版ステータスPublished - 1991 1 1
    イベント8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2) - Madrid, Spain
    継続期間: 1990 9 101990 9 14

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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