Chemical imaging fiberscope

A Raman imaging fiberscope for the collection of white light images, Raman chemical images and Raman spectra from a sample comprising:

• an outer jacket;
• one or more white light illumination fibers, disposed in said outer jacket, for transmitting white light from a white light source to said sample;
• one or more laser illumination fibers, disposed in said outer jacket, for transmitting laser light of a specific laser excitation wavelength from a laser source to said sample;
• a coherent fiber bundle, disposed in said outer jacket, for transmitting a white light image of said sample and scattered Raman light from said sample;
• a laser bandpass 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;
• a laser rejection filter positioned between said sample and said coherent fiber bundle for transmitting wavelengths of light other than said specific laser excitation wavelength;
• and
• a liquid crystal tunable filter imaging spectrometer;
• and
• a spatial filter positioned between said sample and said coherent fiber bundle for restricting the field of view of said coherent fiber bundle.

A Raman imaging fiberscope for collecting white light images, Raman chemical images and Raman spectra from a sample comprising:

• one or more white light illumination fibers for transmitting white light from a white light source to said sample;
• one or more laser illumination fibers for transmitting laser light of a specific laser excitation wavelength from a laser source to said sample;
• a coherent fiber bundle;
• a laser bandpass 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;
• a laser rejection filter positioned between said sample and said coherent fiber bundle for transmitting wavelengths of light other than said specific laser excitation wavelength;
• and
• a spatial filter positioned between said sample and said coherent fiber bundle for restricting the field of view of said coherent fiber bundle;
• wherein said coherent fiber bundle transmits white light images, images composed of Raman scattered light and Raman spectra from a plurality of locations on the surface of said sample corresponding to individual fibers in said coherent fiber bundle.

A Raman imaging fiberscope for collecting broadband images, Raman chemical images and Raman spectra from a sample comprising:

• one or more white light illumination fibers for transmitting white light from a white light source to said sample;
• one or more laser illumination fibers for transmitting laser light of a specific laser excitation wavelength from a laser source to said sample;
• a coherent fiber bundle;
• a laser bandpass 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;
• a laser rejection filter positioned between said sample and said coherent fiber bundle for transmitting wavelengths of light other than said specific laser excitation wavelength;
• one of more lenses positioned between said sample and said coherent fiber bundle;
• a spatial filter position between said sample and said coherent fiber bundle for restricting the field of view of said coherent fiber bundle;
• an outer jacket for angular enclosing the fiberscope;
• and
• a window disposed at the end of said outer jacket.