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Spectrometer Uses Micromachined Grating

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Daniel S. Burgess

In the pursuit of compact spectrometers for a variety of industrial applications, researchers at Fraunhofer Institut für Photonische Mikrosysteme in Dresden, Germany, have developed a device based on a micromechanical scanning grating. They suggest that the work may yield handheld products with a better combination of range and resolution than today's low-cost, fixed-grating spectrometers. Heinrich Grüger, a division head at the institute, explained that the device configuration is a variant of the Czerny-Turner setup, in which a motor tilts a dispersive element, typically a grating, and...Read full article

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