Picosecond ultrasonics is a type of ultrasonics that uses ultra-high frequency ultrasound generated by ultrashort light pulses. It is a non-destructive technique in which picosecond acoustic pulses penetrate into thin films or nanostructures to reveal internal features such as film thickness as well as cracks, delaminations and voids. It can also be used to probe liquids. The technique is also referred to as picosecond laser ultrasonics or laser picosecond acoustics.
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Picosecondultrasonics is a type of ultrasonics that uses ultra-high frequency ultrasound generated by ultrashort light pulses. It is a non-destructive...
the detection system (see picosecondultrasonics). Historically, fundamental research into the nature of laser-ultrasonics was started in 1979, by Richard...
based around picosecondultrasonics systems have demonstrated acoustic imaging in cells using sub-optical wavelengths working with ultrasonic frequencies...
two in the other direction. Linear elasticity Love wave Phonon Picosecondultrasonics Rayleigh wave Surface plasmon polariton Ultrasound Applied Solid...
light that flashes from the bubbles last between 35 and a few hundred picoseconds long, with peak intensities of the order of 1–10 megawatts (1,300–13...
MEMS oscillators suitable for high speed serial applications with sub-picosecond integrated jitter. The U.S. Defense Advanced Research Projects Agency...
1998 for the discovery. In 1984, the first photoconductive antennas for picosecond electromagnetic radiation were demonstrated by Auston and others. This...
ionization energy of the noble gas with argon having a light pulse of 160 picoseconds. In 1937, the explanations for the light emission have favored electrical...
clocks have 5×10−16 systematic uncertainty, which is equivalent to 50 picoseconds per day. A system of several fountains worldwide contributes to International...
response to photon interaction, ranging from femtoseconds (ultra-fast) to picoseconds. Potential uses include transparent films, touch screens and light emitters...
range of sweep speeds is generally provided, from seconds to as fast as picoseconds (in the fastest) per division. Usually, a continuously-variable control...
techniques of generating ultra-short light pulses from lasers, and of picosecond streak cameras." Wilhelm Siegmund Feldberg Biology "In recognition of...
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