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Inverse magnetostriction is the effect by which magnetization can be changed upon application of stress/strain. A strain modulation may be created electrically by exciting interdigitated transducers to generate surface acoustic waves…

Surface-acoustic-wave (SAW) based devices have emerged as a promising technology in magnetic field sensing by integrating a magnetostrictive layer with the giant {\Delta}E/{\Delta}G effect. However, almost all SAW magnetic field sensors…

Applied Physics · Physics 2022-06-07 Wenbin Hu , Mingxian Huang , Huaiwu Zhang , Feiming Bai

We rigorously assess the potential for extracting high-resolution, multi-mode surface wave dispersion data from distributed acoustic sensing (DAS) measurements using active-source multichannel analysis of surface waves (MASW). We have…

Geophysics · Physics 2022-08-31 Joseph P. Vantassel , Brady R. Cox , Peter G. Hubbard , Michael Yust

Wearable sensing technology capable of point-of-care, continuous and non-invasive analysis of exosomes in biofluid such as tears and sweat is an essential part for future personalized medicine. Major detection and identification methods of…

Mesoscale and Nanoscale Physics · Physics 2026-05-26 Yang Li , Xiaoming Lyu , Ling Xia , Kuo Zhan , Haoyu Ji , Lei Qin , Seppo J. Vainio , Jian-An Huang

Guided by extensive numerical simulations, we propose a microfluidic device that can sort elastic capsules by their deformability. The device consists of a duct embedded with a semi-cylindrical obstacle, and a diffuser which further…

Fluid Dynamics · Physics 2014-09-18 Lailai Zhu , Cecilia Rorai , Dhrubaditya Mitra , Luca Brandt

We theoretically investigate the use of Rayleigh surface acoustic waves (SAWs) for refractive index modulation in optical waveguides consisting of amorphous dielectrics. Considering low-loss Si$_3$N$_4$ waveguides with a standard core cross…

Weakly supervised methods, such as class activation maps (CAM) based, have been applied to achieve bleeding segmentation with low annotation efforts in Wireless Capsule Endoscopy (WCE) images. However, the CAM labels tend to be extremely…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Fan Bai , Xiaohan Xing , Yutian Shen , Han Ma , Max Q. -H. Meng

Surface acoustic wave (SAW) propagation is a powerful method to investigate 2D electron systems. We show how SAW observables are influenced by coupling to the 2D massless Dirac electrons of graphene and argue that Landau oscillations can be…

Mesoscale and Nanoscale Physics · Physics 2010-01-12 Peter Thalmeier , Balázs Dóra , Klaus Ziegler

Low-phase-noise microwave-frequency integrated oscillators provide compact solutions for various applications in signal processing, communications, and sensing. Surface acoustic waves (SAW), featuring orders-of-magnitude shorter wavelength…

In the same way that micro-mechanical resonators resemble guitar strings and drums, Surface Acoustic Waves (SAW) resemble the sound these instruments produce, but moving over a solid surface rather than through air. In contrast with…

Mesoscale and Nanoscale Physics · Physics 2013-03-19 Martin Gustafsson , Paulo V. Santos , Göran Johansson , Per Delsing

Surface acoustic waves (SAWs) enable a wide array of technologies including RF filters, chemical and biological sensors, acousto-optic devices, acoustic control of microfluidic flow in lab-on-a-chip systems, and quantum phononics. While…

Numerical Calculations are employed to study the modulation of light by surface acoustic waves (SAWs) in photonic band gap (PBG) structures. The on/off contrast ratio in PBG switch based on optical cavity is determined as a function of the…

Optics · Physics 2009-11-10 S. Krishnamurthy , P. V. Santos

On-chip quantum information processing requires controllable quantum light sources that can be operated on-demand at high-speeds and with the possibility of in-situ control of the photon emission wavelength and its optical polarization…

Mesoscale and Nanoscale Physics · Physics 2019-02-22 S. Lazic , E. Chernysheva , A. Hernández-Mínguez , P. V. Santos , H. P. van der Meulen

The propagation of a surface acoustic wave (SAW) on GaAs/AlGaAs heterostructures is studied in the case where the two-dimensional electron gas (2DEG) is subject to a strong magnetic field and a smooth random potential with correlation…

Mesoscale and Nanoscale Physics · Physics 2009-10-28 Andreas Knaebchen , Yehoshua Levinson , Ora Entin-Wohlman

We present a weakly supervised deep learning method to perform instance segmentation of cells present in microscopy images. Annotation of biomedical images in the lab can be scarce, incomplete, and inaccurate. This is of concern when…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Fidel A. Guerrero-Peña , Pedro D. Marrero Fernandez , Tsang Ing Ren , Alexandre Cunha

The size- and fluorescence-based sorting of micro- and nano-scale particles suspended in fluid presents a significant and important challenge for both sample analysis and for manufacturing of nanoparticle-based products. Here we demonstrate…

Soft Condensed Matter · Physics 2015-02-16 Sukumar Rajauria , Christopher Axline , Claudia Gottstein , Andrew N. Cleland

A surgical world model capable of generating realistic surgical action videos with precise control over tool-tissue interactions can address fundamental challenges in surgical AI and simulation -- from data scarcity and rare event synthesis…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Sampath Rapuri , Lalithkumar Seenivasan , Dominik Schneider , Roger Soberanis-Mukul , Yufan He , Hao Ding , Jiru Xu , Chenhao Yu , Chenyan Jing , Pengfei Guo , Daguang Xu , Mathias Unberath

We report evidence of the magnetization reversal in nanoparticles by surface acoustic waves (SAWs). The experimental system consists of isolated magnetite nanoparticles dispersed on a piezoelectric substrate. Magnetic relaxation from a…

Mesoscale and Nanoscale Physics · Physics 2017-08-02 J. Tejada , E. M. Chudnovsky , R. Zarzuela , N. Statuto , J. Calvo-de la Rosa , P. V. Santos , A. Hernandez-Minguez

The contactless Surface Acoustic Wave (SAW) technique was implemented to probe the high-frequency (ac) conductivity in a high-mobility $p$-SiGe/Ge/SiGe structure in the integer quantum Hall (IQHE) regime. The structure was grown by…

Mesoscale and Nanoscale Physics · Physics 2013-12-12 I. L. Drichko , V. A. Malysh , I. Yu. Smirnov , A. V. Suslov , O. A. Mironov , M. Kummer , H. von Känel

We assess experimentally the ability of a simple flow-based sorting device, recently proposed numerically by [Zhu et al., Soft Matter, 2014, 10, 7705-7711], to separate capsules according to their stiffness. The device consists of a single…

Soft Condensed Matter · Physics 2021-01-01 Edgar Haner , Doriane Vesperini , Anne-Virginie Salsac , Anne Le Goff , Anne Juel