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Related Experiment Video

Updated: Jun 20, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Chirped-pulse amplification in XeCl.

T R Gosnell, D C Macpherson, A J Taylor

    Optics Letters
    |September 29, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Investigating the effective saturation fluence (E(sat)) of XeCl amplifiers revealed that longer pulse durations increase E(sat). A simple model accurately predicted these experimental findings.

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    An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers

    Published on: October 23, 2018

    Area of Science:

    • Laser Physics
    • Nonlinear Optics
    • Excimer Lasers

    Background:

    • Understanding the saturation characteristics of laser amplifiers is crucial for optimizing laser performance.
    • Excimer lasers, such as XeCl, are widely used in various scientific and industrial applications.

    Purpose of the Study:

    • To measure the effective saturation fluence (E(sat)) of a XeCl discharge amplifier using different pulse durations.
    • To investigate the impact of pulse width and chirp on E(sat).

    Main Methods:

    • Experimental measurements of E(sat) using picosecond (ps) nearly transform-limited and strongly chirped pulses.
    • Comparison of E(sat) values for 0.25-ps, 16-ps, and 75-ps pulses.
    • Development and application of a rate-equation model incorporating gain bandpass variations and population decay.

    Main Results:

    • The effective saturation fluence (E(sat)) for a 16-ps pulse was comparable to that of a 0.25-ps pulse.
    • Pulse stretching to 75 ps increased the effective E(sat) by 35%.
    • Measured E(sat) values for longer pulses were lower than predicted for transform-limited pulses.

    Conclusions:

    • Pulse duration significantly influences the effective saturation fluence in XeCl amplifiers.
    • A rate-equation model accurately predicts the observed E(sat) behavior, considering gain variations and population decay.
    • The findings provide valuable insights for optimizing high-power excimer laser systems.