Ultrasonic attenuation in amorphous silicon at 50 and 100 GHz
نویسندگان
چکیده
منابع مشابه
Attenuation of Picosecond Ultrasonic Pulses in a thin Silicon Wafer
We report picosecond ultrasonic measurements of phonon attenuation in a 56 μm thick Si wafer coated with a 25 nm Al film. The measurements are of interest for picosecond ultrasonic imaging schemes, and for investigations of nanoscale heat transport. An ultrafast laser was used to perform the pump-probe experiment. A probe delay stage with a range of several nanoseconds allowed detection of cohe...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2011
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.83.121303