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Related Experiment Video

Updated: May 6, 2026

Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope
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High-sensitive and broad-dynamic-range quantitative phase imaging with spectral domain phase microscopy.

Yangzhi Yan, Zhihua Ding, Yi Shen

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    |November 13, 2013
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    Spectral domain phase microscopy achieves high sensitivity and broad dynamic range for quantitative phase imaging. This depth domain phase retrieval method enhances optical path difference measurements, outperforming spectral domain approaches.

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    Area of Science:

    • Optical Imaging
    • Microscopy
    • Biomedical Optics

    Background:

    • Quantitative phase imaging (QPI) is crucial for label-free cell visualization.
    • Existing QPI methods face limitations in balancing sensitivity and dynamic range.

    Purpose of the Study:

    • To present a novel spectral domain phase microscopy technique for high-sensitive and broad-dynamic-range QPI.
    • To investigate the sensitivity advantages of depth domain phase retrieval over spectral domain methods.

    Main Methods:

    • Developed a spectral domain phase microscopy system.
    • Implemented phase retrieval in the depth domain for enhanced sensitivity.
    • Utilized spectral domain phase information to extend the dynamic range of optical path difference.

    Main Results:

    • Demonstrated high sensitivity in phase retrieval within the depth domain.
    • Achieved an extended dynamic range for optical path difference measurements.
    • Successfully performed phase imaging of a resolution target and an onion skin specimen.

    Conclusions:

    • The proposed depth domain phase-based approach offers superior performance for QPI.
    • This method provides a powerful tool for high-resolution, quantitative biological imaging.