【摘要】 瑞利型非简并四波混频是测量物质超快纵向弛豫时间的有效手段 ,将场关联原理应用于具有热吸收的样品中瑞利型非简并四波混频的热背底抑制 ,给出了抑制热背底的条件 ,并通过数值模拟证明了其可行性更多还原

【Abstract】 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.更多还原