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Researchers demonstrate record speed with advanced spectroscopy technique

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Researchers report the first dual-comb spectrometer with an acquisition speed of 10 gigahertz. The optical setup they used is shown here. Credit: David R. Carlson, National Institute of Standards and Technology and the University of Colorado in Boulder Researchers have developed an advanced spectrometer that can acquire data with exceptionally high speed. The new spectrometer could be useful for a variety of applications including remote sensing, real-time biological imaging and machine vision.

Spectrometers measure the color of light absorbed or emitted from a substance. However, using such systems for complex and detailed measurement typically requires long data acquisition times.

“Our new system can measure a spectrum in mere microseconds,” said research team leader Scott B. Papp from the National Institute of Standards and Technology and the University of Colorado, Boulder. “This means it could be used for chemical studies in the dynamic environment of power plants or jet engines, for quality control of pharmaceuticals or semiconductors flying by on a production line, or for video imaging of biological samples.”

In The Optical Society (OSA) journal Optics Express , lead author David R. Carlson and colleagues Daniel D. Hickstein and Papp report the first dual- comb spectrometer with a pulse repetition rate of […]

read more here —> phys.org

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