Raman spectroscopy

Vibrational spectroscopy is useful tool to investigate high-pressure structure changes and thermodynamic properties.  A micro-Raman spectroscopy system designed for in situ high-pressure study has been built in our lab.  The main components of this system are an Ar ion laser (tunable, 200 mW), CCD detector (Princeton Instruments), 0.5 m spectrometer, and holographic optics.

Recent projects in the Raman lab:

• Non-destructive identification of gems from the Princeton collection

Schematics

Plan view.

Ar ion Laser source with optics.

Schematic diagram.

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