The Raman spectra of a particular face of a single crystal can be significantly different if acquired with different microscope objectives. This article explains the underlying physics of changes in relative intensity and even peak position of certain Raman bands depending on the microscope objective used to acquire the spectrum.
Russ Algar, the winner of Spectroscopy’s 2017 Emerging Leader in Molecular Spectroscopy Award, is developing fluorescence assays and measurement systems based on quantum dots. One day, these methods may enable smartphone-based medical diagnostics.
The apparent reaction kinetics between SO3 and polyethylene are investigated in various halogenated solvents using in situ Raman spectroscopy with an immersion Raman probe, demonstrating the power of in situ Raman spectroscopy to monitor hazardous reactions.