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Raman Spectra of Metal Oxides

October 1, 2014

Metal oxides often occur in crystals where there are no molecular units. Here, we provide an introduction to the concepts that need to be understood when analyzing metal oxides in materials such as paint, ceramic pigments, corrosion films, catalysts, and minerals.

Headspace Raman Spectroscopy

September 1, 2014

We examine vapor-phase Raman spectroscopy through the acquisition of spectra from gas molecules confined to the headspace.

Raman Microscopy for Detecting Counterfeit Drugs — A Study of the Tablets Versus the Packaging

June 1, 2014

Results of tablet matching measurements and characterization of packaging are presented.

Practical Group Theory and Raman Spectroscopy, Part II: Application of Polarization

March 14, 2014

Polarized Raman spectra are presented along with a discussion of the association of the symmetry species of the normal vibrational mode and the depolarization ratio of Raman scattering.

Practical Group Theory and Raman Spectroscopy, Part I: Normal Vibrational Modes

February 14, 2014

The application of group theory for practical use in laboratory vibrational spectroscopy is examined.

Considerations of Grating Selection in Optimizing a Raman Spectrograph

October 1, 2013

The physics that determine how gratings and spectrographs work are summarized in simple terms for new users of Raman equipment.

Raman Imaging of Silicon Structures

September 1, 2013

What exactly is a "Raman image" and how is it rendered? The authors explain those points, and demonstrate the use of Raman imaging for the characterization of thin-film and ion-implanted silicon structures. High spectral resolution makes it possible to resolve or contrast the substrate silicon and polysilicon film in Raman images and thus aids in the chemical or physical differentiation of spectrally similar materials.

Resonance Enhancement of Raman Spectroscopy: Friend or Foe?

June 1, 2013

The presence of electronic transitions in the visible part of the spectrum can provide enormous enhancement of Raman signals.

Raman Spectroscopy of Oil Shale

March 1, 2013

Characterizing oil shale, particularly black shale consisting of kerogen, with Raman spectroscopy Features
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