Results 121 to 130 of about 1,443 (165)

Tailored ultrasound propagation in microscale metamaterials via inertia design. [PDF]

Sci Adv
Sun R, Lem J, Kai Y, DeLima W, Portela CM.   +4 more
europepmc   +1 more source

The effect of echoes interference on phonon attenuation in a nanophononic membrane. [PDF]

Nat Commun
Hadi M, Luo H, Pailhès S, Tanguy A, Gravouil A, Capotondi F, De Angelis D, Fainozzi D, Foglia L, Mincigrucci R, Paltanin E, Pedersoli E, Pelli-Cresi JS, Bencivenga F, Giordano VM.   +14 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Simulation of multiwavelength conditions in laser picosecond ultrasonics

SIMULATION, 2021
Complete 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

Effect of laser pulse duration in picosecond ultrasonics

Journal of Applied Physics, 2006
An 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.
Perton, M., Chigarev, Nikolay, Rossignol, C., Rampnoux, Jean-Michel, Audoin, Bertrand, Dehoux, T.   +5 more
openaire   +3 more sources

Phonons rectification in picosecond laser ultrasonics

The Journal of the Acoustical Society of America, 2008
In standard ultrafast acoustic experiments very short coherent acoustic pulses are generated by the absorption of a femtosecond laser pulse in a thin metallic transducer deposited on the sample. Subsequently the acoustic pulses and the heat generated in the transducer cross the sample and are partially transmitted in the underlaying substrate.
Bernard Perrin, Shuo Zhang, Laurent Belliard, Emmanuel Péronne   +3 more
openaire   +1 more source

Intra-IC Inspection and Metrology with Picosecond Laser Ultrasonics

2005 IEEE Instrumentationand Measurement Technology Conference Proceedings, 2006
This paper presents the application of picosecond laser ultrasonics for integrated circuit inspection and failure analysis. The technique is described and illustrated with several results. The potential for metal and inter-metal layers metrology in the context of process characterization is ...
G. Andriamonje, V. Pouget, Y. Ousten, D. Lewis, P. Fouillat, Y. Danto   +5 more
openaire   +1 more source

Evaluation and Imaging of Materials Using Picosecond Laser-Induced Ultrasonics

Japanese Journal of Applied Physics, 1993
We have developed a novel microscopic method named laser-stimulated scattering microscopy for the nonde-structive evaluation of surface modification of materials. It is a kind of laser microscope based upon space- and time-resolved transient reflecting gratings.
Akira Harata Akira Harata, Tsuguo Sawada Tsuguo Sawada   +1 more
openaire   +1 more source

Evidence of Laser-Wavelength Effect in Picosecond Ultrasonics: Possible Connection With Interband Transitions

Physical Review Letters, 2001
Physical Review ...
Devos, Arnaud, Lerouge, Catherine
openaire   +3 more sources

CHARACTERIZATION OF TRANSPARENT AND OPAQUE THIN FILMS USING LASER PICOSECOND ULTRASONICS

Nondestructive Testing and Evaluation, 1992
Abstract This paper describes new applications of laser picosecond ultrasonics to the nondestructive testing of transparent and opaque thin films of thickness in the range 20 nm to 10 μm. The optical pump-probe technique is used to excite ultrasonic stress pulses with acoustic wavelength of order 20 nm and detect time-dependent reflectance variations ...
O.B WRIGHT, T. HYOGUCHI, K. KAWASHIMA
openaire   +1 more source

Solitary surface acoustic waves and bulk solitons in nanosecond and picosecond laser ultrasonics

Ultrasonics, 2010
Recent achievements of nonlinear acoustics concerning the realization of solitons and solitary waves in crystals and their surfaces attained by nanosecond and picosecond laser ultrasonics are discussed and compared. The corresponding pump-probe setups are described, which allow an all-optical contact-free excitation and detection of short strain pulses
Peter, Hess, Alexey M, Lomonosov
openaire   +2 more sources