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Cognex Corp. - Smart Sensor 3-24 GIF LB

Sensor Studies Chemicals with Single Chip

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A tiny new sensor uses miniaturized IR laser technology to identify and study chemicals — all on a single chip. The new sensor, developed by researchers at the Vienna University of Technology, can analyze liquids and gases, as well as their chemical compositions. And it can all be done with a single chip. Creating such sensors involves quantum cascade lasers and light detectors. Between these devices is a gap in the optical connection that is traditionally bridged by gold- and silicon nitride-based plasmonic waveguides. Now, the new technique makes it possible to create such...Read full article

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    Published: June 2014
    Glossary
    quantum cascade laser
    A quantum cascade laser (QCL) is a type of semiconductor laser that operates based on the principles of quantum mechanics. It is a versatile and powerful device used for emitting coherent light in the mid-infrared to terahertz range of the electromagnetic spectrum. Quantum cascade lasers were first proposed by Federico Capasso, Jerome Faist, Deborah Sivco, Carlo Sirtori, Albert Hutchinson, and Alfred Cho in 1994. Key features and principles of quantum cascade lasers: Quantum cascade...
    AustriachemicalsEuropefiber opticsgoldlensesOpticsplasmonic waveguidequantum cascade laserResearch & TechnologySensors & Detectorssilicon nitridesilicon oxideTech PulseTU ViennaVienna University of TechnologyBenedikt SchwarzLasers

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