Nonlinear spectroscopy based on the effect of resonant optical detection
Butylkin V. S. , Krochik G. M., Khronopulo Yu. G.
We investigate the principles of a new type of nonlinear spectroscopy, based on the effect of resonant optical detection. It is shown that the use of one frequency-tunable light source permits measurement of the magnitude and dispersion of the nonlinear susceptibility. We discuss also a new possibility of nonlinear ultrahigh-resolution spectroscopy.