Results 161 to 170 of about 4,136 (218)

A tunable phononic crystal working with magnetofluid

open access: yesInternational Journal of Hydromechatronics, 2023
Phononic crystal has attracted increasing interests because of their fascinating properties in manipulating classical waves. To improve the practicability of the phononic crystal with enforcing adjustability for adapting to various application scenarios,
Shuaishuai Sun, Haiping Du
exaly   +1 more source

Waveguiding in two-dimensional piezoelectric phononic crystal plates

open access: yesJournal of Applied Physics, 2007
International audienceWe investigate the possibility of designing phononic crystal-based devices for telecommunication applications using materials commonly employed in microfabrication. We focus our attention on a phononic crystal made of a square array
J O Vasseur   +2 more
exaly   +2 more sources
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Phonons in an Entropic Crystal

Physical Review Letters, 2000
Hard spheres crystallize due to purely entropic forces. The underlying excluded-volume interaction is completely anharmonic and the nature of the phonon spectrum is therefore of interest. To measure the single-particle motion and the phonon spectrum by dynamic light scattering we have used a collection of novel techniques including multispeckle cross ...
, Cheng, , Zhu, , Russel, , Chaikin
openaire   +2 more sources

Phononic crystals

Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003., 2004
AbstractPhononic crystals are periodic composite materials with lattice spacings comparable to the acoustic wavelength. They are of interest not only because of the profound effects of their periodic structure on wave propagation (e.g., the existence of acoustic band gaps), but also because of potential applications (e.g., their possible role in sound ...
Page, John H.   +9 more
openaire   +3 more sources

Phonon Spectrum in a Plasma Crystal

Physical Review Letters, 2002
The Fourier spectra of longitudinal and transverse waves corresponding to random particle motion were measured in a two-dimensional plasma crystal. The crystal was composed of negatively charged microspheres immersed in a plasma at a low gas pressure.
Nunomura, S.   +5 more
openaire   +3 more sources

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