UMass Lowell Students Design A Chemical Gas Sensor For Defense Applications

UMass Lowell physics undergraduate student Eric Nagy introduces his group's design of a chemical gas sensor for national defense applications. The sensor is a sub-wavelength Gold-Air-Gold waveguide with a toothed structure, which enhances gas-light interaction to allow for high sensitivity, and a more cost-effective solution to current gas sensing technologies. The sensor was designed for the Mid-Infrared region of the electromagnetic spectrum, known as the "chemical fingerprint," because so many gases have light absorption in this region. Nagy's work was focused on designing a system which could control the concentration of a test gas to test the sensor.
See also: http://www.uml.edu/research
http://www.uml.edu/centers/photonics/

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