Stokes frequencies

Stokes frequencies

[¦stōks ‚frē·kwən·sēz]
(optics)
Scattered (secondary) light in the Raman effect (when a high-intensity light beam passes through a transparent medium) that occurs at frequencies smaller than the frequency of the primary beam.
References in periodicals archive ?
Crozier, "Double-resonance plasmon substrates for surface-enhanced Raman scattering with enhancement at excitation and stokes frequencies," ACS Nano, Vol.