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High-resolution ghost imaging experiments with cosh-Gaussian modulated incoherent sources.

Chunling Luo, Haihong Xu, Jing Cheng

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |September 15, 2015
    PubMed
    Summary

    Ghost imaging quality is enhanced using hyperbolic cosine modulated Gaussian sources. This technique improves image resolution and offers a high-efficiency method for ghost imaging applications.

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    Area of Science:

    • Optics and Photonics
    • Quantum Imaging

    Background:

    • Ghost imaging (GI) is a technique that allows image acquisition using correlated photon pairs or intensity correlations.
    • Improving the quality and resolution of ghost images is crucial for practical applications.

    Purpose of the Study:

    • To experimentally demonstrate the enhancement of ghost imaging quality by modulating incoherent Gaussian sources.
    • To investigate the effect of hyperbolic cosine parameters on ghost imaging performance.

    Main Methods:

    • Generating cosh-Gaussian intensity distributions using a programmable spatial light modulator.
    • Implementing the modulated sources in a ghost imaging setup.
    • Experimentally and theoretically analyzing the influences of the hyperbolic cosine parameter.

    Main Results:

    • Significant improvement in ghost imaging quality was achieved.
    • Enhanced resolution of ghost images was observed with cosh-Gaussian modulated sources.
    • The hyperbolic cosine parameter was found to influence point-spread function and image quality.

    Conclusions:

    • Modulating incoherent Gaussian sources with hyperbolic cosine functions is an effective method to improve ghost imaging quality.
    • This source-shaping technique offers high efficiency and potential for various ghost imaging applications.