Nonlinear Phenomena in Complex Systems, 2010, Vol.13, No.3, pp.309-314

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2010, Vol.13, No.3, pp.309-314

Real-Time Optical Phase Conjugation for Scattering Compensation in Turbid Media.
Dmitry V. Gorbach, Alexei L. Tolstik, Oleg G. Romanov, Noe Ortega-Quijano, Felix Fanjul-Velez, and Jose Luis Arce-Diego

The possibility of scattering suppression effect for biological tissues based on the implementation of optical phase conjugation via four-wave mixing in a nonlinear medium has been analyzed. The process of short light pulse propagation through highly scattering media is modeled based on Finite-Difference Time-Domain calculations of Maxwell's equations. The model for optical phase conjugation is derived based on coupled-mode equations for degenerate four-wave mixing in dye solutions. The scheme is experimentally analyzed for typical parameters of laser light beams and biological tissues in visible region of spectrum.
Key words: optical phase conjugation, four-wave mixing, finite-difference time-domain method, turbid media, biological tissues

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