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Laser-crystal sensor measures strong magnetic fields in challenging environments
Researchers at Sandia National Laboratories have patented a magneto-optical sensor, which uses a rare earth crystal and laser light to measure the strength of intense magnetic fields and electrical currents.
“We think this technology is a pretty major improvement in measuring magnetic fields,” said Israel Owens, a Sandia physicist and co-inventor of the sensor. “We think it’ll be essential especially for research in fusion, high-energy physics, and the power utilities industry. We’re really excited about where things are going.”
Sandeep Puri (Center for Emerging Energy Sciences, Department of Physics and AstronomyTexas Tech University), Noah D'Amico (Center for Emerging Energy Sciences, Department of Physics and Astronomy, Texas Tech University), Ian D. Jones (Center for Emerging Energy Sciences, Department of Physics and Astronomy, Texas Tech University), Cuikun Lin (Center for Emerging Energy Sciences, Department of Physics and Astronomy, Texas Tech University), Andrew K. Gillespie (Center for Emerging Energy Sciences, Department of Physics and Astronomy, Texas Tech University), Bo Zhao (College of Arts and Sciences Microscopy, Texas Tech University), Ryan Weed (Positron Dynamics), Robert Duncan (Center for Emerging Energy Sciences, Department of Physics and Astronomy, Texas Tech University)
Transactions | Volume 132 | Number 1 | June 2025 | Pages 590-590