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    A new simulation program aids the design of high-harmonic generation (HHG) light sources for ultrafast spectroscopy. This tool accounts for macroscopic and microscopic effects, improving HHG light source development.

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    Area of Science:

    • Physics, Optics
    • Quantum Optics
    • Laser Physics

    Background:

    • High-harmonic generation (HHG) is crucial for ultrafast spectroscopy, providing light from extreme ultraviolet to soft X-ray.
    • Designing and implementing HHG light sources presents significant challenges.
    • Numerical simulations can aid in the development and optimization of HHG sources.

    Purpose of the Study:

    • To introduce a novel simulation program for high-harmonic generation (HHG) light sources.
    • To provide a tool that considers both macroscopic and microscopic aspects of HHG.
    • To support the broad range of parameters used in current HHG applications.

    Main Methods:

    • Development of a new simulation program for HHG.
    • Incorporation of both macroscopic and microscopic physical effects into the simulation.
    • Validation against published experimental data and common experimental configurations.

    Main Results:

    • The simulation program successfully models HHG across a wide parameter range.
    • Validation confirms the program's accuracy by comparison with experimental results.
    • Calculations for four common experimental setups demonstrate the program's versatility.

    Conclusions:

    • The developed simulation program is a valuable tool for designing and improving HHG light sources.
    • The program's comprehensive approach (macroscopic and microscopic) enhances its applicability.
    • This tool facilitates advancements in ultrafast spectroscopy utilizing HHG-based light sources.