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Compact Microspectrometer Achieves High Resolution, Wide Bandwidth

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ATLANTA, June 22, 2011 — A new microspectrometer architecture that uses compact disk-shaped resonators could address the challenges of integrated lab-on-chip sensing systems that now require a large off-chip spectrometer to achieve high resolution. Spectrometers have conventionally been expensive and bulky benchtop instruments used to detect and identify the molecules inside a sample by shining light on it and measuring different wavelengths of the emitted or absorbed light. Previous efforts toward miniaturizing spectrometers have reduced their size and cost, but these reductions have typically resulted in...Read full article

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    Published: June 2011
    Glossary
    resolution
    1. In optics, the ability of a lens system to reproduce the points, lines and surfaces in an object as separate entities in the image. 2. The minimum adjustment increment effectively achievable by a positioning mechanism. 3. In image processing, the accuracy with which brightness, spatial parameters and frame rate are divided into discrete levels.
    Ali A. EftekharAli AdibiAmericasBabak MomeniCMOSGeorgiaGeorgia Institute of TechnologyGeorgia TechHanscom Air Force BaseImaginglab-on-chip sensingMassachusettsmicrodonut resonatorsMicroscopymicrospectrometersMohammad SoltaniResearch & TechnologyresolutionRichard SorefSensors & DetectorsSiva YegnanarayananspectroscopyTest & MeasurementUS Air Force Research LaboratoryZhixuan Xia

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