What is spectroscopy?

Have you ever used a prism to separate visible light into the colors of the rainbow? 🌈 Spectroscopy is all about studying light to gain deeper scientific understanding. #Light #Plasma #Fusion

Kajal Shah, a strategic science initiative postdoctoral researcher at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL), explains how photons — or particles of light — are excellent messengers for fusion researchers.

By measuring particles of light in different wavelength ranges with high-resolution spectrometers and highly advanced detectors, scientists can gain a better understanding of what is happening inside the plasma during a fusion reaction — everything from temperature and density, to elemental composition and more. Such knowledge is critical to help develop fusion energy as a source of clean energy for all.

🎬 Video credits: Filmed and edited by Michael Livingston, produced by Gwen McNamara, with assistance from Tristan Weisenbach

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