Xie, et al. combined a near-IR version of this technique with optical tweezers to probe single biological cells, using the difference between two shifted excitations to screen out fluorescence. The accuracy of this technique is greatly improved by using an optical filter with a steep notch centered at the source wavelength. The interaction of an EM field with metallic nanostructures creates localized surface plasmons that greatly enhance the signal of this technique. This technique can give information about vibrational modes that's complementary to (*) IR spec. It measures the frequency of emitted photons from an anisotropically polarizable molecule, after anti-Stokes or Stokes scattering, and compares them to the frequency of a monochroma
Xie, et al. combined a near-IR version of this technique with optical tweezers to probe single biological cells, using the difference between two shifted excitations to screen out fluorescence. The accuracy of this technique is greatly improved by using an optical filter with a steep notch centered at the source wavelength. The interaction of an EM field with metallic nanostructures creates localized surface plasmons that greatly enhance the signal of this technique. This technique can give information about vibrational modes that's complementary to (*) IR spec. It measures the frequency of emitted photons from an anisotropically polarizable molecule, after anti-Stokes or Stokes scattering, and compares them to the frequency of a monochromatic source. For 10 points, identify this type of spectroscopy named for an Indian physicist.
Xie, et al. combined a near-IR version of this technique with optical tweezers to probe single biological cells, using the difference between two shifted excitations to screen out fluorescence.