Imaging through a strong scattering medium with nonlinear optical field cross-correlation techniques.

We demonstrate a new technique for imaging an object obscured by a scattering medium. A class of nonlinear optical field cross-correlation processes is discussed and shown to be capable of reproducing an image of the hidden object. The spatial resolution can be easily controlled by adjustment of the laser bandwidth. The process of coherent anti-Stokes Raman scattering was employed in this research to produce an image of a wire hidden behind a suspension of nondairy creamer.

[1]  M. Raymer,et al.  Cancellation of laser phase fluctuations in Stokes and anti-Stokes generation , 1988 .

[2]  Phase correlation in a Raman amplifier , 1986 .

[3]  Feng Liu,et al.  Ultrafast laser-pulse transmission and imaging through biological tissues. , 1993, Applied optics.

[4]  Michael G. Raymer,et al.  Theory of stimulated Raman scattering with broad-band lasers , 1979 .

[5]  N. Abramson,et al.  Chrono-coherent imaging for medicine , 1989, IEEE Transactions on Biomedical Engineering.

[6]  H Chen,et al.  Two-dimensional imaging through diffusing media using 150-fs gated electronic holography techniques. , 1991, Optics letters.

[7]  J. Fujimoto,et al.  Femtosecond transillumination optical coherence tomography. , 1993, Optics letters.

[8]  J. Carlsten,et al.  Gain enhancement in a XeCl-pumped Raman amplifier , 1988 .

[9]  Robert L. Byer,et al.  Steady-state stimulated Raman scattering by a multimode laser , 1980 .

[10]  R R Alfano,et al.  Kerr - Fourier imaging of hidden objects in thick turbid media. , 1993, Optics letters.

[11]  J. Fujimoto,et al.  Femtosecond optical ranging in biological systems. , 1986, Optics letters.

[12]  S. Svanberg,et al.  Time-resolved transillumination for medical diagnostics. , 1990, Optics letters.

[13]  E. Stappaerts,et al.  Gain enhancement in Raman amplifiers with broadband pumping. , 1980, Optics letters.

[14]  R A Kruger,et al.  Time resolved imaging through a highly scattering medium. , 1991, Applied optics.

[15]  R. Alfano,et al.  Ballistic 2-D Imaging Through Scattering Walls Using an Ultrafast Optical Kerr Gate , 1991, Science.

[16]  M D Duncan,et al.  Time-gated imaging through scattering media using stimulated Raman amplification. , 1991, Optics letters.

[17]  R R Alfano,et al.  Imaging objects hidden in highly scattering media using femtosecond second-harmonic-generation cross-correlation time gating. , 1991, Optics letters.