Methods of analyzing samples using broadband laser light
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United States of America Patent
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Feb 22, 2011
Grant Date -
Feb 25, 2010
app pub date -
Oct 14, 2009
filing date -
Mar 22, 2004
priority date (Note) -
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Abstract
Broadband light, for example, from a Fabry-Perot quantum cascade laser, is shone onto a sample, and spectral data concerning the broadband light reflected from the sample is collected. The spectral data is analyzed to determine information about one or more substances in the sample. For example, if the sample contains micro-organisms, such as bacteria or fungus, the biological classification(s) (e.g., species) of the micro-organisms can be determined from the spectral data. As another example, if the sample contains virus, the biological classification(s) (e.g., species) of the virus(es) can be determined from the spectral data. As yet another example, if the sample contains particles, size, location and velocity can be determined from the spectral data.
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