Interference in applications of this effect is often mitigated using a 785 nanometer light source to reduce competition with fluorescence. This effect is most prevalent when, for at least one component, there is a non-zero derivative of the rho-sigma component of the polarizability tensor with respect to the normal coordinate of vibration at equilibrium. The selection rule for the related spectroscopy requires delta J be plus or minus two or zero, and it can be augmented via interaction with surface plasmons. This effect proceeds by inducing a virtual excited state, which relaxes producing a peak slightly below and a 
Interference in applications of this effect is often mitigated using a 785 nanometer light source to reduce competition with fluorescence. This effect is most prevalent when, for at least one component, there is a non-zero derivative of the rho-sigma component of the polarizability tensor with respect to the normal coordinate of vibration at equilibrium. The selection rule for the related spectroscopy requires delta J be plus or minus two or zero, and it can be augmented via interaction with surface plasmons. This effect proceeds by inducing a virtual excited state, which relaxes producing a peak slightly below and a weaker one slightly above the Rayleigh peak. Those are Stokes and Anti-stokes lines in its spectra. For 10 points, name this type of inelastic scattering discovered by an Indian physicist in 1928.
Interference in applications of this effect is often mitigated using a 785 nanometer light source to reduce competition with fluorescence.
{Raman} scattering [accept {Raman Effect} , or {Raman Spectroscopy} , prompt on {inelastic scattering} , prompt on {Stokes scattering} before mentioned]