pump-probe experiment

A pump-probe experiment utilizes two light beams, a pump beam and a probe beam, that interact with a sample material. The pump beam initiates a sample response. A probe beam monitors the response, usually with a lower optical intensity that does not significantly affect the sample. In one type of pump-probe experiment, both the pump beam and the probe beam come from a single beam of laser pulses that is split into two parts. The pulses from the pump beam interact with the sample. The probe beam monitors any changes (such as sample transmission) that may have taken place due to the pump beam. The probe beam can be time delayed before reaching the sample. Varying the time delay allows the experimenter to monitor the time dependence of any changes in the sample.


radiative relaxation


See also: Photo-activated material, Fluorescence, Stimulated emission.


SimphoSOFT logo SimphoSOFT® supports simulation of pump-probe, including experiments with more than one probe beam. App Notes SimphoSOFT logo


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