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High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Article DOI: 10.3791/53468-v • 13:31 min • December 22nd, 2015
December 22nd, 2015 •
1, 2,3, 1
1Fischell Department of Bioengineering, University of Maryland, 2Wellman Center for Photomedicine, Harvard Medical School, Massachusetts General Hospital, 3The Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology

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Here we present a protocol to build a rapid Brillouin spectrometer. Cascading virtually imaged phase array (VIPA) etalons achieve a measurement speed more than 1,000 times faster than traditional scanning Fabry-Perot spectrometers. This improvement provides the means for Brillouin analysis of tissue and biomaterials at low power levels in vivo.

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Sub-GHz Spectrometer Brillouin Scattering Analysis High-extinction Spectrometer High-resolution Spectrometer Optical Brillouin Spectrometer Viscoelastic Material Properties Material Characterization Structural Monitoring Environmental Sensing Scanning Fabry-Perot Etalons Biomedical Applications Novel Spectrometer VIPAs Cross-axis Configuration Sub-Gigahertz Resolution Spectral Analysis Sub-second Acquisition Time Illumination Power Biological Tissue Safety Limits Biological Research Clinical Application
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