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- W4362655961 abstract "Aberrations and multiple scattering in biological tissues critically distort light beams into highly complex speckle patterns. In this regard, digital optical phase conjugation (DOPC) is a promising technique enabling in-depth focusing. However, DOPC becomes challenging when using fluorescent guide-stars for four main reasons: The low photon budget available, the large spectral bandwidth of the fluorescent signal, the Stokes shift between the emission and the excitation wavelength, and the absence of reference beam preventing holographic measurement. Here, we demonstrate the possibility to focus a laser beam through multiple-scattering samples by measuring speckle fields in a single acquisition step with a reference-free and high-resolution wavefront sensor. By taking advantage of the large spectral bandwidth of forward multiply scattering samples, Digital Fluorescence Phase Conjugation (DFPC) is achieved to focus a laser beam at the excitation wavelength while measuring the broadband speckle field arising from a micron-sized fluorescent bead." @default.
- W4362655961 created "2023-04-07" @default.
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- W4362655961 date "2023-04-04" @default.
- W4362655961 modified "2023-10-01" @default.
- W4362655961 title "Single-shot Digital Optical Fluorescence Phase Conjugation Through Forward Multiply Scattering Samples" @default.
- W4362655961 doi "https://doi.org/10.48550/arxiv.2304.01759" @default.
- W4362655961 hasPublicationYear "2023" @default.
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