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breezels
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third-order hyperpolarizability "γ" in nonlinear optics
In nonlinear optics third-order hyperpolarizability of molecules "γ" is often measured by THG(third-harmonic generation) experiments.
So third-order nonlinear susceptibility "X(3)" could be calculated from formula using the value of "γ".
Note that third-order nonlinear susceptibility "X(3)" is the complex number.
However in stimulated raman scattering experiments, the gain coefficient "g" is proportion of the imaginary part of X(3).
My question is :
If third-order hyperpolarizability of molecules "γ" is obtained by THG method, can this value("γ" ) be used to calculate the gain coefficient "g" from stimulated raman scattering formula?
or
Is third-order nonlinear susceptibility "X(3)" calculated using the value of third-order hyperpolarizability "γ" by THG method the same with the one used in stimulated raman gain coefficient formula?
In nonlinear optics third-order hyperpolarizability of molecules "γ" is often measured by THG(third-harmonic generation) experiments.
So third-order nonlinear susceptibility "X(3)" could be calculated from formula using the value of "γ".
Note that third-order nonlinear susceptibility "X(3)" is the complex number.
However in stimulated raman scattering experiments, the gain coefficient "g" is proportion of the imaginary part of X(3).
My question is :
If third-order hyperpolarizability of molecules "γ" is obtained by THG method, can this value("γ" ) be used to calculate the gain coefficient "g" from stimulated raman scattering formula?
or
Is third-order nonlinear susceptibility "X(3)" calculated using the value of third-order hyperpolarizability "γ" by THG method the same with the one used in stimulated raman gain coefficient formula?