Results 31 to 40 of about 54,841 (212)

Special Issue on Wireless and Passive Surface Acoustic Wave Sensor

Applied Sciences, 2022
The surface acoustic wave (SAW) generated by the so-called piezoelectric effect was confined to the piezoelectric substrate surface at a depth of one or two wavelengths; hence, it was very sensitive towards the external perturbations [...]
Wen Wang
doaj   +1 more source

Weiss Oscillations in Surface Acoustic Wave Propagation

, 1997
The interaction of a surface acoustic wave (SAW) with a a two-dimensional electron gas in a periodic electric potential and a classical magnetic field is considered.
A. D. Mirlin, A. D. Mirlin, A. Knäbchen, A. Wixforth, A. Wixforth, C. W. J. Beenakker, D. Weiss, F. von Oppen, G. R. Nash, J. M. Shilton, K. A. Ingebristen, O. Entin-Wohlman, P. H. Beton, P. Wölfle, R. L. Willet, R. L. Willett, R. L. Willett, R. L. Willett, R. Menne, R. W. Winkler, Y. Levinson, Y. Paltiel   +21 more
core   +1 more source

Droplets displacement and oscillations induced by ultrasonic surface acoustic waves: a quantitative study

, 2010
We present an experimental study of a droplet interacting with an ultrasonic surface acoustic wave (SAW). Depending on the amplitude of the wave, the drop can either experience an internal flow with its contact-line pinned, or (at higher amplitude) move ...
Baudoin, M., Brunet, P., Matar, O. Bou, Zoueshtiagh, F.   +3 more
core   +2 more sources

Review of surface acoustic wave-based hydrogen sensor

Sensors and Actuators Reports
Hydrogen (H2) sensors with excellent performance play an important role in the safety application of H2 energy. Among current H2 detection technologies, surface acoustic wave (SAW) based H2 sensors attract more attention due to their features of high ...
Baile Cui, Zixuan Ren, Wen Wang, Lina Cheng, Xu Gao, Lintaihui Huang, Anyu Hu, Fanbing Hu, Jing Jin   +8 more
doaj   +1 more source

Cell detachment and label-free cell sorting using modulated surface acoustic waves (SAW) in droplet-based microfluidics

, 2014
We present a droplet-based surface acoustic wave (SAW) system designed to viably detach biological cells from a surface and sort cell types based on differences in adhesion strength (adhesion contrast), without the need to label cells with molecular ...
Baudoin, Michael, Bou-Matar, Olivier, Bussonnière, Adrien, Charette, Paul, Grandbois, Michel, Miron, Yannick, Renaudin, Alan   +6 more
core   +3 more sources

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Acoustoelectric current and pumping in a ballistic quantum point contact

, 2000
The acoustoelectric current induced by a surface acoustic wave (SAW) in a ballistic quantum point contact is considered using a quantum approach. We find that the current is of the "pumping" type and is not related to drag, i.e.
F. A. Maaø, F. Hekking, H. Totland, J. M. Shilton, M. Büttiker, O. Entin-Wohlman, P. W. Brouwer, P. Wölfle, T. A. Shutenko, V. I. Falko, V. I. Talyanskii, V. L. Gurevich, V. L. Gurevich, Y. B. Levinson, Y. Levinson, Y. Levinson, Y. Levinson   +16 more
core   +1 more source

Giant Berry‐phase‐Driven X‐Ray Beam Translations in Strain‐Engineered Semiconductor Crystals

Advanced Materials, EarlyView.
Due to the Berry‐phase effect, X‐rays propagating in deformed crystals undergo large translations, interesting for X‐ray optics applications. Here, the lattice expansion observed upon H irradiation of dilute‐nitride semiconductors is exploited to engineer the deformation landscape of selectively hydrogenated GaAsN epilayers.
Marco Felici, Giorgio Pettinari, Michela Fratini, Luisa Barba, Simone Birindelli, Gaetano Campi, Silvia Rubini, Tobias Schülli, Mario Capizzi, Antonio Polimeni   +9 more
wiley   +1 more source

Flexible thin-film acoustic wave devices with off-axis bending characteristics for multisensing applications

Microsystems & Nanoengineering, 2021
Flexible surface acoustic wave (SAW) devices have recently attracted tremendous attention for their widespread application in sensing and microfluidics. However, for these applications, SAW devices often need to be bent into off-axis deformations between
Zhangbin Ji, Jian Zhou, Huamao Lin, Jianhui Wu, Dinghong Zhang, Sean Garner, Alex Gu, Shurong Dong, YongQing Fu, Huigao Duan   +9 more
doaj   +1 more source

Surface acoustic wave-induced electroluminescence intensity oscillation in planar light-emitting devices

, 2005
Electroluminescence emission from surface acoustic wave-driven light-emitting diodes (SAWLEDs) is studied by means of time-resolved techniques. We show that the intensity of the SAW-induced electroluminescence is modulated at the SAW frequency (~1 GHz ...
A. J. Shields, Campbell C. K., D. A. Ritchie, D. G. Gevaux, Fabio Beltram, H. E. Beere, Hamilton B., M. B. Ward, Marco Cecchini, Vincenzo Piazza   +9 more
core   +1 more source