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Optics Letters

Optics Letters


  • Vol. 25, Iss. 12 — Jun. 15, 2000
  • pp: 929–931

Real-time two-dimensional imaging in scattering media by use of a femtosecond Cr4+:forsterite laser

E. Abraham, E. Bordenave, N. Tsurumachi, G. Jonusauskas, J. Oberlé, C. Rullière, and A. Mito  »View Author Affiliations

Optics Letters, Vol. 25, Issue 12, pp. 929-931 (2000)

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An original femtosecond Cr4+:forsterite laser source associated with a nonlinear optical correlator was used for imaging through scattering media with 1220-nm light. The system, which operates as an ultrafast optical gate by sum-frequency generation in a nonlinear crystal, was able to detect the light reflected from a resolution chart hidden in a turbid medium, at an attenuation of as much as 15 mean free paths. When the object was illuminated with a collimated beam, real-time two-dimensional images were obtained, with a maximum transverse resolution of ∼20 µm.

© 2000 Optical Society of America

OCIS Codes
(290.1350) Scattering : Backscattering
(290.1990) Scattering : Diffusion
(290.7050) Scattering : Turbid media
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

E. Abraham, E. Bordenave, N. Tsurumachi, G. Jonusauskas, J. Oberlé, C. Rullière, and A. Mito, "Real-time two-dimensional imaging in scattering media by use of a femtosecond Cr4+:forsterite laser," Opt. Lett. 25, 929-931 (2000)

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