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 Karl Franzens University Graz

Graz University of Technology 

Changing the Face of Greenhouse Gas Sensing with Optical Frequency Combs
Ian Coddington
NIST Boulder USA
16:15 - 17:15 Tuesday 18 October 2022 Online talk

The optical frequency comb is rapidly maturing from a laboratory curiosity to a critically enabling technology in areas ranging from dual-comb spectroscopy of atmospheric gasses, to precision time dissemination, to the search for earth sized exoplanets. This talk will focus on the theory and background of this laser system as well as the development of dual-comb spectroscopy. In particular, I’ll focus on the application of dual-comb spectroscopy for greenhouse gas measurement, looking at both applications in methane monitoring in oil and gas plays and improving urban carbon measurements. As with any technology journey the ultimate goal is to shepherd it across the “Valley of Death” that separates most research from commercialized technology where it can have societal impact.

Ian Coddington received a B.A. degree in physics from Reed College and a Ph.D. degree in physics working under Eric Cornell at the University of Colorado. He is currently a scientist in the Communications Technology Laboratory at the National Institute of Standards and Technology. His work has focused on the development of applications for novel frequency comb lasers and he has pioneered dual-comb techniques for greenhouse gas spectroscopy focusing heavily on methane. In his time at NIST, Dr. Coddington has received a 2011 Silver medal from the Department of Commerce, a 2012 Presidential Early Career Award for Scientists and Engineers (PECASE) and the Arthur S. Flemming Award. He was most recently awarded the 2019 Colorado Governor’s Award and the 2020 Department of Commerce Gold Medal for his work with the University of Colorado on low-cost detection and quantification of fugitive emissions from oil and gas infrastructure.

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