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    Area of Science:

    • Biomedical Optics
    • Optical Imaging
    • Metrology

    Background:

    • Full-field optical coherence tomography (FF-OCT) is crucial for high-resolution imaging.
    • Traditional FF-OCT methods often require multiple acquisitions, limiting dynamic process monitoring.
    • Phase instability during acquisition can lead to data corruption in temporal phase-shifting techniques.

    Purpose of the Study:

    • To develop and demonstrate a single-shot FF-OCT technique for efficient dynamic process monitoring.
    • To overcome limitations of multi-shot acquisition in time-domain FF-OCT.
    • To enable robust imaging of processes with inherent phase fluctuations.

    Main Methods:

    • Implementation of a balanced Mach-Zehnder interferometer configuration for FF-OCT.
    • Utilizing a balanced detection scheme combined with spatial phase shifting for single-shot acquisition.
    • Employing a 2D quadrature signal-based demodulation technique with the Riesz transform for image reconstruction.

    Main Results:

    • Successful demonstration of single-shot spatial phase shifting in time-domain FF-OCT.
    • Reconstruction of FF-OCT images from single-shot acquisition.
    • Validation of the method's capability for monitoring dynamic processes without phase-related failures.

    Conclusions:

    • The proposed single-shot FF-OCT method effectively captures dynamic processes.
    • This approach eliminates failures caused by temporal phase changes, enhancing robustness.
    • Accurate registration of spatially shifted interferograms is critical for successful implementation.