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Optical Frequency Combs
What do optical frequency combs do?
In 2019, scientists and engineers from NIST, University of Colorado Boulder, and LongPath Technologies developed a dual-comb, portable spectroscopy system to detect minute methane emissions from oil and gas fields. Optical frequency combs emit a continuous train of very brief, closely spaced pulses of light containing a million different colors, spanning from the invisible infrared through the visible and into the ultraviolet spectrum. Hall and his team of physicists at JILA, including Steven Cundiff, Scott Diddams, David Jones and Jun Ye, developed several other techniques that pushed the optical frequency comb closer to reality.
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