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Aero-optical effects, part II. Sources of aberrations: tutorial.

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    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |January 31, 2025
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    Summary
    This summary is machine-generated.

    This tutorial surveys sources of aero-optical aberrations, including boundary layers and shock waves. Understanding these effects is crucial for developing advanced airborne-laser systems at various speeds.

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    Area of Science:

    • Optical Engineering
    • Fluid Dynamics
    • Aerospace Engineering

    Background:

    • Aero-optical effects significantly impact the performance of airborne systems.
    • Part I of this tutorial introduced system-level considerations for aero-optics.
    • A comprehensive understanding of aberration sources is needed for system design.

    Purpose of the Study:

    • To survey and categorize various sources of aero-optical aberrations.
    • To analyze foundational and miscellaneous contributors to optical distortion.
    • To emphasize the impact of these aberrations on system-level performance.

    Main Methods:

    • Review and synthesis of established knowledge on aero-optical aberration sources.
    • Categorization of aberrations into foundational (e.g., boundary layers) and miscellaneous (e.g., shock waves).
    • Focus on the link between aberration sources and their effect on system performance.

    Main Results:

    • Identification of key aberration sources including boundary layers, shear layers, mechanical contamination, shock waves, and aeroacoustics.
    • Demonstration of how these sources degrade optical performance.
    • Reinforcement of the connection between specific aberration drivers and overall system-level performance.

    Conclusions:

    • Understanding diverse aero-optical aberration sources is critical for effective airborne-laser system development.
    • The findings build upon system-level considerations, informing future high-speed platform designs.
    • This knowledge is essential for optimizing optical performance across subsonic, supersonic, and hypersonic flight regimes.