Accession Number : ADD015642

Title :   Apparatus for Imaging an Object in or Through a Scattering Medium Using Coherent Anti-Stokes Raman Scattering.

Descriptive Note : Patent Application, Filed 13 Nov 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bashkansky, Mark ; Reintjes, John F

Report Date : 13 Nov 1992

Pagination or Media Count : 24

Abstract : A method and apparatus for imaging an object that is part of, embedded in or viewed through a scattering medium is provided. A first broadband beam generator, such as a broadband pulse laser, provides a first broadband beam. A second broadband beam generator, such as a Raman Stokes generator disposed to receive the first broadband beam, generates a second broadband beam capable of correlation with the first broadband beam. A coherent anti-Stokes Raman scattering material is disposed to receive the second broadband beam after dispersion in the scattering medium. A variable delay path also illuminates the coherent anti-Stokes Raman scattering material with the first broadband beam. The coherent anti-Stokes Raman scattering material produces an anti-Stokes beam which contains an extracted image of an object in the scattering medium, which image is recorded on a photodetector.

Descriptors :   *IMAGES, *PATENT APPLICATIONS, *COHERENT SCATTERING, *STOKES RADIATION, *RAMAN SPECTRA, BROADBAND, CORRELATION, DELAY, DISPERSIONS, GENERATORS, LASERS, MATERIALS, PATHS, PHOTODETECTORS, PULSES, SCATTERING, VARIABLES, MEDIA, BEAMS(ELECTROMAGNETIC), OPTICS

Subject Categories : Nuclear Physics & Elementary Particle Physics
      Atomic and Molecular Physics and Spectroscopy
      Optics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE