Combining ultrasonic modulation and optical phase conjugation allows light to be tightly focused in a scattering medium, providing benefits for studies of photophysical, photochemical and photobiological processes.
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Konecky, S., Tromberg, B. Focusing light in scattering media. Nature Photon 5, 135–136 (2011). https://doi.org/10.1038/nphoton.2011.19
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DOI: https://doi.org/10.1038/nphoton.2011.19
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