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11 February 2011 Phase conjugating nanomirrors: utilizing optical phase conjugation for imaging
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Barium titanate (BaTiO3) is a good candidate for phase conjugation on the nano-scale, as four-wave mixing has been shown in nanoparticles of this type. Also, the ability to dope this material with rare earth elements, with strong absorption and emission lines, makes it possible to use these as multi-functional, multi-modal probes for biomedical applications. BaTiO3 nanoparticles are synthesized using a precipitation method and fully characterized. These particles are used in a four wave mixing setup to optically conjugate scattered light traveling through turbid media, such as tissue, to re-obtain lost image information due to the scattering process.
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Brian G. Yust, Dhiraj K. Sardar, and Andrew Tsin "Phase conjugating nanomirrors: utilizing optical phase conjugation for imaging", Proc. SPIE 7908, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VIII, 79080G (11 February 2011);

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