Identification of Minor Dye Components of Fibers via Integrating Cavity-Enhanced Raman Spectroscopy, 2019-2022 (ICPSR 38884)
Principal Investigator(s): View help for Principal Investigator(s)
Hergen Eilers, Washington State University
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The goal of this project is to evaluate integrating-cavity-enhanced Raman spectroscopy (ICERS) to measure anti-Stokes Raman spectra for the characterization of dyed fibers. ICERS has been developed for the ultrasensitive identification and characterization of materials, and enhancements of five orders of magnitude have been demonstrated. Using ICERS to measure anti-Stokes Raman spectra eliminates the fluorescence background, while the cavity design amplifies the anti-Stokes Raman signal. The combination of the two makes it possible to detect, identify, and characterize minor dye components without interference from fluorescence. Such an approach is expected to reveal more minor dye components which could help narrow down the source of the fiber in question.