Thermal background suppression in Rayleigh-type nondegenerate four-wave mixing based on field-correlation effects
孙江 Sun Jiang, Jiang Qian, Xin Mi +3 more
We apply the principle of field-correlation to the thermal background suppression of the Rayleigh-type nondegenerate four-wave mixing spectra,which have been employed for the measurement of ultrafast longitudinal time in the frequency-domain recently. Conditions,under which contributions from the thermal grating can be neglected,are given and numerical results that illustrate the validity of this method are presented.
Acta Physica Sinica•Jan 1, 2004•0 citations