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Published September 27, 2010 | Published
Journal Article Open

Imaging through turbid layers by scanning the phase conjugated second harmonic radiation from a nanoparticle


We demonstrate imaging through a turbid layer by using digital phase conjugation of the second harmonic field radiated from a beacon nanoparticle. We show that the phase-conjugated focus can be displaced from its initial position by illuminating the same region of the turbid layer with an angular offset. An image is obtained by scanning the phase-conjugated focus through the turbid layer in a region around the nanoparticle. We obtain a clear image of the target by measuring the light transmitted through it when scanning the focused beam.

Additional Information

© 2010 Optical Society of America. Received 26 Jul 2010; revised 5 Sep 2010; accepted 8 Sep 2010; published 15 Sep 2010. The authors thank Dr. Paul Bowen at EPFL for providing the BaTiO3 nanoparticles. This project is supported by the National Center of Competence in Research (NCCR), Quantum Photonics.

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