Raman microscope

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Photo of a Raman microscope made by Renishaw, with a sample enclosure
Raman microscope made by Renishaw plc

The Raman microscope is a laser-based microscopic device used to perform Raman spectroscopy.[1] The term MOLE (molecular optics laser examiner) is used to refer to the Raman-based microprobe.[1] The technique used is named after C. V. Raman who discovered the scattering properties in liquids.

The Raman microscope begins with a standard optical microscope, and adds an excitation laser, laser rejection filters, a spectrometer or monochromator, and an optical sensitive detector such as a charge-coupled device (CCD), or photomultiplier tube, (PMT). Traditionally Raman microscopy was used to measure the Raman spectrum of a point on a sample, more recently the technique has been extended to implement Raman spectroscopy for direct chemical imaging over the whole field of view on a 3D sample.

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References[edit]

  1. ^ a b Microscopical techniques in the use of the molecular optics laser examiner Raman microprobe, by M. E. Andersen, R. Z. Muggli, Analytical Chemistry, 1981, 53 (12), pp 1772–1777 [1]