While employed at Ford, Maker and Terhune invented a type of this technique that measures ruby-laser induced blueshifting as a proxy for three-wave mixing. That type of this technique forms a coherent signal by treating a sample with two laser pulses instead of a continuous wave, and is called either CSRS (“scissors”) or CARS (“cars”). This (10[1])technique can measure (10[1])the diameters of single-walled carbon nanotubes (10[1])by analyzing their radial breathing (10[1])mode. (10[2])Modes in (10[1])this technique (10[1])are only detected alongside changes in polarizability. (10[1]-5[1])Changes in wavenumber are measured in this technique based (10[1])on the change of energy in Stokes and anti-Stokes (10[3])transitions. (10[2])For (10[1])10 points, name this spectroscopic (10[1])technique that relies on a type of inelastic scattering to measure the vibrational (10[1])modes (-5[1])of molecules, named for an Indian chemist. ■END■ (10[1]0[1])