Raman Spectroscopy Through Rose-Colored Glasses

Crude hand drawing of how C.V. Raman set up his experiment. His original groundbreaking experiments used liquids, but crystals are much nicer to look at in schematic. Sunlight is filtered, to only allow the violet part of the spectrum to pass. That violet light interacts with a material, and then light scatters off the material in all directions. Next, the violet scattered without loss in energy (elastically scattered), and so it needs to be filtered to observe what new colors have been generated. Raman used a green filter for this.

Keeping science accessible. Researching how minerals can be used to solve problems like climate change, pollution, and disease. @ NHMLA, USC, NASA-JPL

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