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High-Performance Laser Mirrors Detect Trace Amounts of Substances in Gas Mixtures
Written by AZoOpticsMay 19 2021
For the first time, physicists from the University of Vienna have successfully demonstrated high-performance laser mirrors in the sensing-relevant mid-infrared wavelength range. These mirrors absorb below 10 out of a million photons.
Crystalline interference coatings bonded on different optical substrates. Image Credit: © 2018 Georg Winkler, University of Vienna.
The study was performed in global cooperation with research and industry partners, which also involved Thorlabs, the National Institute of Standards and Technology (NIST), and the University of Kansas.
These low-loss mirrors, produced in a novel process based on crystalline materials, could pave the way to entirely new application fields, such as in optical respiratory gas analysis for the detection of greenhouse gases or the early detection of cancer. The study will be published in the cu ....

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