Results 41 to 50 of about 236,690 (298)

Surface Acoustic Wave (SAW) Vibration Sensors

Sensors, 2011
In the paper a feasibility study on the use of surface acoustic wave (SAW) vibration sensors for electronic warning systems is presented. The system is assembled from concatenated SAW vibration sensors based on a SAW delay line manufactured on a surface ...
Jerzy Filipiak, Grzegorz Steczko, Lech Solarz   +2 more
doaj   +1 more source

Electro-optic and electro-absorptive modulations of AlGaAs/GaAs quantum well using surface acoustic wave [PDF]

, 1998
The surface acoustic wave produced electron absorptive and electro-optic modulation in AlGaAs/ GaAs quantum well structures are theoretically analyzed. The quantum well structures are optimized by maximizing the optical confinement of the modal field in ...
Choy, WCH, Li, EH, Weiss, BL
core   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source

Enhanced sequential carrier capture into individual quantum dots and quantum posts controlled by surface acoustic waves

, 2010
Individual self-assembled Quantum Dots and Quantum Posts are studied under the influence of a surface acoustic wave. In optical experiments we observe an acoustically induced switching of the occupancy of the nanostructures along with an overall increase
Akopian N., Alsina F., Babiński A., Bayer M., Bdefeld C., Benson O., Berthelot A., Brunner K., Couto O. D. D., Drexler H., Finley J. J., Fuhrmann D. A., Gell J. R., Gywat O., He J., Krauss J., Krenner H. J., Krenner H. J., Krenner H. J., Krenner H. J., Krenner H. J., Kukushkin I. V., Leonard D., Li L. H., Michler P., Moskalenko E. S., Regelman D. V., Reuter D., Robledo L., Rocke C., Rocke C., Rotter M., Sakaki H., Scheibner M., Schliwa A., Schülein F. J. R., Sogawa T., Stinaff E. A., Stoltz N. G., Vögele X. P., Völk S., Warburton R. J., Wiele C., Wixforth A.   +43 more
core   +1 more source

Influence of viscoelasticity and interfacial slip on acoustic wave sensors [PDF]

, 2000
Acoustic wave devices with shear horizontal displacements, such as quartz crystal microbalances (QCM) and shear horizontally polarised surface acoustic wave (SH-SAW) devices provide sensitive probes of changes at solid-solid and solid- liquid interfaces.
Cowen, JA, Lucklum, R, McHale, G, Newton, MI   +3 more
core   +1 more source

CRISPR/Cas9‐Assisted Microrobots for Fast and Ultrasensitive “On‐The‐Fly” Next‐Generation DNA Detection

Advanced Functional Materials, EarlyView.
This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti, Petr Michálek, Zbyněk Heger, Martin Pumera   +3 more
wiley   +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

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

Advanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee, Kang Hyuk Cho, Seojin Yun, Siyoung Lee, Woongji Kim, Yunsik Kim, Wonkyu Moon, Yoonyoung Chung, Kilwon Cho   +8 more
wiley   +1 more source

Continuous cell lysis in microfluidics through acoustic and optoelectronic tweezers [PDF]

, 2013
A versatile platform for efficient cell lysis using a combination of acoustic and electric fields in a microchannel is presented. Cell membrane disruption is triggered by electric fields inducing electroporation and then lysis.
Cooper, J.M., Kremer, C., Neale, S.L., Witte, C.   +3 more
core   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source