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Chemical imaging fiberscope

  • US 7,239,782 B1
  • Filed: 09/03/2004
  • Issued: 07/03/2007
  • Est. Priority Date: 09/03/2004
  • Status: Active Grant
First Claim
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1. A chemical imaging fiberscope for imaging and collecting Raman spectra from a sample comprising:

  • one or more laser illumination fibers for transmitting laser light of a specific laser excitation wavelength from a first source to said sample;

    a plurality of collection fibers, for receiving light scattered from said sample;

    a first portion of a spectral filter positioned between said one or more laser illumination fibers and said sample for transmitting said laser light of a specific laser excitation wavelength and rejecting light of other wavelengths; and

    a second portion of the spectral filter positioned between said sample and said plurality of collection fibers for transmitting wavelengths of light other than said specific laser excitation wavelength;

    wherein the spectral filter is spatially patterned into the first portion for filtering said laser light and a second, transparent portion for transmitting light scattered or reflected by said sample to said plurality of collection fibers.

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