Laser Raman Spectroscopy
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The Raman measurements are made using the instrumentation shown below. The output light from a laser is focused to a ~ 30 micron spot on the sample cell. The scattered light is collected at right angles to the excitaion laser beam and focused onto the entrance slit of a 1.25 m polychromator (Spex) where it is dispersed and detected by a charge coupled device camera (Princeton Instruments).
(A) Laser System
Laser Types ----------- Output Company
(1) Argon Ion Laser VIS Spectra Physics
(2) Krypton Ion Laser VIS Spectra Physics
(3) Argon Ion Pumped Tsunami Laser with Frequency Doubler VIS Spectra Physics
(4) He-Cd Laser VIS Liconix
(5) Frequency Doubled Argon Ion (FReD) Laser UV Coherent
(B) Spectrometer: SPEX 1365 , SPEX 750M
(C) CCD Dector: Princeton Instruments
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Albert Einstein College of Medicine | Dept. of Physiology and Biophysics