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- W2105235877 abstract "Raman spectroscopy is an analytical technique with vast applications in the homeland security and defense arenas. The Raman effect is defined by the inelastic interaction of the incident laser with the analyte molecule’s vibrational modes, which can be exploited to detect and identify chemicals in various environments and for the detection of hazards in the field, at checkpoints, or in a forensic laboratory with no contact with the substance. A major source of error that overwhelms the Raman signal is fluorescence caused by the background and the sample matrix. Novel methods are being developed to enhance the Raman signal’s sensitivity and to reduce the effects of fluorescence by altering how the hazard material interacts with its environment and the incident laser. Basic Raman techniques applicable to homeland security applications include conventional (off-resonance) Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS), resonance Raman spectroscopy, and spatially or temporally offset Raman spectroscopy (SORS and TORS). Additional emerging Raman techniques, including remote Raman detection, Raman imaging, and Heterodyne imaging, are being developed to further enhance the Raman signal, mitigate fluorescence effects, and monitor hazards at a distance for use in homeland security and defense applications." @default.
- W2105235877 created "2016-06-24" @default.
- W2105235877 creator A5014159338 @default.
- W2105235877 creator A5056034134 @default.
- W2105235877 creator A5070597655 @default.
- W2105235877 creator A5073441734 @default.
- W2105235877 date "2012-06-06" @default.
- W2105235877 modified "2023-09-28" @default.
- W2105235877 title "Raman Spectroscopy for Homeland Security Applications" @default.
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