Time resolved heat propagation in a gold crystal by means of picosecond x‐ray diffraction
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Characteristic Cu Kα x-ray pulses of less than 10 ps duration at 300 Hz repetition rate are generated in a x-ray diode driven by 1.8 ps, 193 nm pulses. Both light and x-ray pulses are utilized in pump-probe experiment to study the heat propagation in a Au(111) crystal lattice. Changes in the x-ray diffraction pattern in the first 100 ps are clearly observed with about 10 ps resolution. The system allows for detection of temperature changes of 20°C in the 8-20 ps time frame. © 1996 American Institute of Physics.
author list (cited authors)
Chen, P., Tomov, I. V., & Rentzepis, P. M.