Conventional Raman spectroscopy systems use a fixed-wavelength ... The filtered light is then detected by the highly sensitive silicon photoreceiver, which converts the optical signal into an ...

Laser Biomedical Research Center, G. R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, United States ...

However, this reduces the sensitivity of low-cost silicon CCD detectors at longer wavenumbers, making it difficult or impossible to view the "stretch" section of the Raman spectra (2000-4000 cm-1).

Optimized optical components enable Raman spectra to be recorded at each image ... is partially removed in the image for better visibility of the silicon impurities (red) in the water and API ...

Optimized optics and mechanical components enable Raman spectra to be recorded at each image pixel with ... The oil phase (green) is partially removed in the image for better visibility of the silicon ...