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We present theoretical results for the optical conductivity and thenon-resonant Raman susceptibilities for three principal polarization geometriesrelevant to the square lattice. The susceptibilities are obtained using therecently developed extremely correlated Fermi liquid theory for thetwo-dimensional t-t'-J model, where t and t' are the nearest and secondneighbor hopping. Our results are sensitively depending on t, t'. By studyingthis quartet of related dynamical susceptibilities, and their dependence on t,t', doping and temperature, we provide a useful framework for interpreting andplanning future Raman experiments on the strongly correlated matter.

Nonresonant Raman Scattering in Extremely Correlated Fermi Liquids