Abstract

We demonstrate the application of a subpicosecond optical parametric amplifier working at degeneracy to imaging in diffuse media. This optical parametric amplifier exhibits small-signal gains greater than 10⁴, thereby acting as a high-gain ultrafast amplifying gate. We have used it to construct the image of a grid pattern hidden behind 20 mean free paths of a highly diffusing solution of latex microspheres with a spatial resolution of 200 μm.

© 1995 Optical Society of America

Imaging through scattering media by parametric amplification of images: study of the resolution and the signal-to-noise ratio

Gaëlle Le Tolguenec, Eric Lantz, and Fabrice Devaux
Appl. Opt. 36(31) 8292-8297 (1997)

Depth-resolved holographic imaging through scattering media by photorefraction

S. C. W. Hyde, N. P. Barry, R. Jones, J. C. Dainty, P. M. W. French, M. B. Klein, and B. A. Wechsler
Opt. Lett. 20(11) 1331-1333 (1995)

Experimental images of heterogeneous turbid media by frequency-domain diffusing-photon tomography

M. A. O’Leary, D. A. Boas, B. Chance, and A. G. Yodh
Opt. Lett. 20(5) 426-428 (1995)

Parametric amplification of a polychromatic image

F. Devaux and E. Lantz
J. Opt. Soc. Am. B 12(11) 2245-2252 (1995)

Ultrashort-pulse generation in degenerate optical parametric oscillators

S. Longhi
Opt. Lett. 20(7) 695-697 (1995)