Detection of shorter-than-skin-depth acoustic pulses in a metal film via transient reflectivity
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چکیده
Short acoustic pulses are generated in SrRuO3 transducers and detected at the surface of gold films by transient reflectivity. Contrary to expectations, acoustic pulses that are shorter than the optical skin depth of gold are resolved. A comparison of gold detection films that were grown under different deposition conditions demonstrates that the microstructure of a detection film can impact the shape of the detected signal.
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تاریخ انتشار 2013