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Systems and methods using multi-wavelength single-pulse Raman spectroscopy
Systems and methods using multi-wavelength single-pulse Raman spectroscopy
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机译:使用多波长单脉冲拉曼光谱的系统和方法
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摘要
The invention provides methods and apparatus comprising a multi-wavelength laser source that uses a single unfocused pulse of a low intensity but high power laser over a large sample area to collect Raman scattered collimated light, which is then Rayleigh filtered and focused using a singlet lens into a stacked fiber bundle connected to a customized spectrograph, which separates the individual spectra from the scattered wavelengths using a hybrid diffraction grating for collection onto spectra-specific sections of an array photodetector to measure spectral intensity and thereby identify one or more compounds in the sample.
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