Polarised Infrared Spectroscopy: OH in Forsterite
The image above is the starting frame from a QuickTime version of this updated mp4 movie embedded below:
“This 5.7 MB movie was the result of my first attempt at making polarized infrared measurements. The spectrum represents OH stretching vibrations in a crystal of olivine, synthesized under conditions of the earth's deep interior (8 GPa pressure, or 240 km depth, and about 1000 °C). The red bar in the inset graph shows the orientation of the E-vector of the incident polarized infrared light.” — Tony Withers.
See Tony Withers’ Infrared Spectroscopy page for more details.