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Related Experiment Video

Updated: Jan 27, 2026

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
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Iterative wavefront correction for complex spectral domain optical coherence tomography.

Jonas Kanngiesser, Maik Rahlves, Bernhard Roth

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    |March 16, 2019
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    Summary
    This summary is machine-generated.

    We developed a new optical coherence tomography (OCT) system that manipulates light waves. This technique enhances signals from within scattering samples, improving imaging in biological tissues.

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    Area of Science:

    • Biomedical Optics
    • Optical Engineering

    Background:

    • Spectral domain optical coherence tomography (OCT) is a powerful imaging technique.
    • Imaging within scattering media like biological tissue presents challenges due to signal attenuation and distortion.

    Purpose of the Study:

    • To introduce a compact wavefront manipulation system for spectral domain OCT.
    • To enhance OCT signal acquisition from within scattering samples.

    Main Methods:

    • Implementation of a compact setup modifying only the source path of existing free-space OCT systems.
    • Demonstration of complex-valued OCT signal acquisition using phase shifting.
    • Application of iterative optical wavefront shaping to enhance the OCT signal.

    Main Results:

    • Successful demonstration of locally enhanced OCT signal acquisition from a scattering sample.
    • Validation of the compact setup's ability to improve signal detection.

    Conclusions:

    • The proposed system offers a straightforward integration into existing OCT setups.
    • This wavefront manipulation technique shows promise for advanced imaging in strongly scattering biological tissues.