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High-Quality Manufacturing with Electrochemical Jet Machining (ECJM) for Processing Applications: A Comprehensive Review, Challenges, and Future Opportunities. [PDF]
Micromachines (Basel)Huang Y +5 more
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Picosecond ultrasonics for the modulation and nanoscopy of semiconductor lasers
, 2017 openaire +2 more sources
The Effect of Ultrasonic Vibration on the 3D Printing Fabrication and Grinding Performance of Structured CBN Grinding Wheel. [PDF]
Materials (Basel)Wang Z +6 more
europepmc +1 more source
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Interferometric detection in picosecond ultrasonics
Physica B: Condensed Matter, 1999Abstract We report results obtained using an optical interferometric detection in picosecond ultrasonics. A comparison between signals detected by reflectometric and interferometric measurements was done in various systems: thin films, multilayers and particles in colloids.
B Perrin +3 more
exaly +2 more sources
Generation and detection of incoherent phonons in picosecond ultrasonics
Ultrasonics, 2006In picosecond ultrasonics experiments the absorption of a femtosecond laser pulse in a thin metallic transducer is used to generate very short acoustic pulses. These pulses are made of coherent longitudinal waves with a frequency spectrum that can reach 100-200 GHz. The laser pulse absorption gives rise to a heating of the film of a few Kelvin within a
Perrin, Bernard +2 more
exaly +3 more sources
Nondestructive testing of microstructures by picosecond ultrasonics
Journal of Nondestructive Evaluation, 1990We describe a new method we have developed which can be used to make ultrasonic measurements with picosecond time resolution, and give examples of its application to the study of the acoustic and mechanical properties of microstructures.
Heh-Nan Lin, Humphrey Maris
exaly +2 more sources
Effect of laser pulse duration in picosecond ultrasonics
Journal of Applied Physics, 2006An optical grating has been introduced in a picosecond ultrasonics experiment, in order to vary continuously the duration of the laser beam pulse from 0.1to150ps. The evolution of the measured signal has been observed and analyzed through the comparison with a theoretical approach based on a two-temperature model.
Mathieu Perton
exaly +4 more sources
Simulation of multiwavelength conditions in laser picosecond ultrasonics
SIMULATION, 2021Complete numerical simulations are given under SciLab® and MATLAB® coding environments, concerning propagative acoustic wavefronts, for laser picosecond ultrasonics under multiwavelength conditions. Simulations of the deformation field and its propagation into bulk material are given under different wavelength configurations for optical pump and probe
openaire +2 more sources
Parallel detection for picosecond ultrasonics
The Journal of the Acoustical Society of America, 2008Picosecond laser ultrasonics is a powerful technique for measurement and diagnosis of micro- and nano-scale structures. Unfortunately the data acquisition speeds are slow, this is a major drawback for widespread acceptance and usually makes imaging impractical.
Richard Smith +5 more
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