Results 71 to 80 of about 228,379 (215)

Piezoelectric‐Metal Phononic Crystal Enabling GHz Tunable Ultrahigh Q Quasi‐BIC Mode

Advanced Science, Volume 13, Issue 6, 30 January 2026.
This study introduces a piezoelectric–metal phononic crystal design based on suspended LiNbO3 thin film that realizes quasi‐BIC resonance. The device achieves GHz operation with an ultrahigh quality factor (≈6.5 × 104) and efficient electrical tunability at low voltage.
Xuankai Xu, Jiawei Li, Ruoyu Wang, Ruihong Xiong, Yiwei Wang, Xiaoqin Shen, Tao Wu   +6 more
wiley   +1 more source

Acoustically driven storage of light in a quantum well

, 1997
The strong piezoelectric fields accompanying a surface acoustic wave on a semiconductor quantum well structure are employed to dissociate optically generated excitons and efficiently trap the created electron hole pairs in the moving lateral potential ...
A. Schmeller, A. Wixforth, A. Wixforth, C. Rocke, C. Rocke, C. Weisbuch, D. A. B. Miller, G. Böhm, G. H. Döhler, G. Weimann, J. F. Jain, J. P. Kotthaus, L. Vina, M. J. Hoskins, R. A. Street, S. Schmitt-Rink, S. Zimmermann, T. Gryba, W. J. Tanski, Y. Kim   +19 more
core   +1 more source

Ultra‐Sensitive and Linear Flexible Pressure Sensors with Tri‐Scale Graded Microstructures for Advanced Health Monitoring and Robotic Perception

Advanced Science, Volume 13, Issue 1, 5 January 2026.
A flexible piezoresistive sensor with a 3D tri‐scale graded microstructure is proposed, overcoming the trade‐off between sensitivity and linearity. The device achieves ultra‐high sensitivity (138.6 kPa−1), a broad linear range (400 kPa, R2 = 0.99), and exceptional stability (24 000 repeated loading cycles), enabling precise detection of physiological ...
Rui Chen, Chi Fai Cheung, Qixian Zhang, Tao Luo, Rui Gao, Wei Zhou, Chunjin Wang   +6 more
wiley   +1 more source

Development of an FPW Biosensor with Low Insertion Loss and High Fabrication Yield for Detection of Carcinoembryonic Antigen

Sensors, 2016
In the last two decades, various flexural plate-wave (FPW)-based biosensors with low phase velocity, low operation frequency, high sensitivity, and short response time, have been developed. However, conventional FPW transducers have low fabrication yield
Je-Wei Lan, I-Yu Huang, Yu-Cheng Lin, Chang-Yu Lin, Jian-Lin Chen, Chia-Hsu Hsieh   +5 more
doaj   +1 more source

S-Band Shallow Bulk Acoustic Wave (SBAW) microwave source [PDF]

Techniques necessary to fabricate a high performance S-band microwave single source using state-of-the-art shallow bulk acoustic wave (SBAW) were explored.

core   +1 more source

Recent Developments in the Design of Photoactivated Metal Oxide Gas Sensors and Application of Plasmonic Nanoparticles in Hydrogen‐Sensing Devices

physica status solidi (a), Volume 223, Issue 2, January 2026.
In this review article, the current state for the development of photoactivated metal oxide gas sensors for the application in hydrogen‐sensing devices is evaluated. Herein, the activation and desorption processes of hydrogen surface reactions as well as the photocatalytic dissociation of hydrogen on semiconductors and plasmonic nanoparticles are ...
Ingo Weyrauch, Eva Louisa Hefler, Rene Breuch, Peter Kaul, Sanjay Mathur, Kostyantin Konstantynovski   +5 more
wiley   +1 more source

Analysis of Acoustic Surface Wave Focused Unidirectional Interdigital Transducers Using Coupling-of-Mode Theory

Micromachines
In cell or droplet separation, high acoustic wave energy of a surface acoustic wave (SAW) device is required to generate sufficient acoustic radiation force.
Guopeng Hui, Tinglun Ao, Haotian Liu, Minglei Li, Chen Chen   +4 more
doaj   +1 more source

Injection Locking of Gigahertz‐Frequency Surface Acoustic Wave Phononic Crystal Oscillator

physica status solidi (a), Volume 223, Issue 1, January 2026.
The compact surface‐acoustic‐wave phononic‐crystal oscillator is stabilized by injection locking it to an ultra‐stable reference. The injection locking suppresses the phase noise by 40 dB at low offset frequency region and reduces long‐term frequency drift from hundreds of hertz to 0.35 Hz, advancing portable, high‐performance timing and signal ...
Zichen Xi, Hsuan‐Hao Lu, Jun Ji, Bernadeta R. Srijanto, Ivan I. Kravchenko, Yizheng Zhu, Linbo Shao   +6 more
wiley   +1 more source

Piezoelectric Actuators for In-Liquid Particle Manipulation in Microfluidic Applications

Proceedings, 2017
The possibility to generate acoustic modes based on FPWs (Flexural Plate Waves) in a generic non-piezoelectric substrate for microfludic applications by means of piezoelectric actuators has been explored and described in this paper.
Marco Demori, Marco Baù, Simone Dalola, Marco Ferrari, Vittorio Ferrari   +4 more
doaj   +1 more source

Different quantization mechanisms in single-electron pumps driven by surface acoustic waves

, 2006
We have studied the acoustoelectric current in single-electron pumps driven by surface acoustic waves. We have found that in certain parameter ranges two different sets of quantized steps dominate the acoustoelectric current versus gate-voltage ...
Gloos, K., Hansen, J. Bindslev, Lindelof, P. E., Sorensen, C. B., Utko, P.   +4 more
core   +1 more source