Abstract
Results of room-temperature femtosecond pump-probe measurements of the electronic relaxation in conventional metallic and high-Tc oxide superconductors are reported. The incidence of a short pump pulse (~ 60 fs duration) on a conductor creates a highly excited electron gas within the optical skin depth, thereby changing the optical constants, the reflectivity, and the transmission. By interrogating the sample with a probe pulse as a function of delay time between the pump and the probe, the relaxation of these excited electrons can be monitored.
© 1991 Optical Society of America
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