Results 61 to 70 of about 54,841 (212)

Composite Fermions in Modulated Structures: Transport and Surface Acoustic Waves

, 1998
Motivated by a recent experiment of Willett et al. [Phys. Rev. Lett. 78, 4478 (1997)], we employ semiclassical composite-fermion theory to study the effect of a periodic density modulation on a quantum Hall system near Landau level filling factor nu=1/2.
A. Mirlin, A. Stern, Ady Stern, B. I. Halperin, B. I. Halperin, Bertrand I. Halperin, Felix von Oppen, H. L. Stormer, L. D. Landau, R. L. Willett, R. L. Willett, R. L. Willett, S. H. Simon, S. H. Simon, S. Simon   +14 more
core   +1 more source

Droplet Digital CRISPR for Nucleic Acid Detection

Advanced Science, EarlyView.
This review outlines recent advances in droplet digital CRISPR technology for nucleic acid detection, combining CRISPR specificity with droplet digital‐based absolute quantification. It summarizes core principles, amplification‐assisted and amplification‐free strategies, and representative DNA and RNA biomarker applications.
Yang Zhang, Roy S. K. Walker, Anwar Sunna, Tracie J. Barber, Ming Li   +4 more
wiley   +1 more source

Diamond Coated LW-SAW Sensors-Study of Diamond Thickness Effect

Proceedings, 2017
This study focuses on the fabrication and characterization of Love wave surface acoustic wave (LW-SAW) sensors with a thin nano-crystalline diamond (NCD) coating with an integrated microfluidics system.
L. Drbohlavová, J. C. Gerbedoen, A. Taylor, A. Talbi, L. Fekete, P. Ashcheulov, A. Soltani, V. Bovtun, M. Kempa, J. Bartoň, P. Cígler, V. Mortet   +11 more
doaj   +1 more source

Surface acoustic wave attenuation by a two-dimensional electron gas in a strong magnetic field

, 1997
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 length Lambda and ...
A. Esslinger, A. Mayer, A. Schenstrom, A. Wixforth, A. Wixforth, Andreas Knäbchen, B. I. Halperin, D. Stauffer, F. Guillion, G. W. Farnell, H. A. Fertig, H. L. Zhao, H. P. Wei, I. L. Aleiner, J. H. McFee, J. M. Shilton, J. W. Tucker, L. D. Landau, L. W. Engel, M. B. Isichenko, M. Janßen, M. S. Longuet-Higgins, O. Heinonen, Ora Entin-Wohlman, R. L. Willet, R. L. Willet, R. Mehr, S. A. Trugman, S. Iordansky, S. M. Badalyan, T. Grossman, U. Wulf, V. F. Gantmakher, V. W. Rampton, Yehoshua B. Levinson   +34 more
core   +1 more source

Dynamic modulation of photonic crystal nanocavities using gigahertz acoustic phonons [PDF]

, 2011
Photonic crystal membranes (PCM) provide a versatile planar platform for on-chip implementations of photonic quantum circuits. One prominent quantum element is a coupled system consisting of a nanocavity and a single quantum dot (QD) which forms a ...
Bouwmeester, Dirk, Fuhrmann, Daniel A., Kim, Hyochul, Krenner, Hubert J., Petroff, Pierre M., Thon, Susanna M., Wixforth, Achim   +6 more
core   +2 more sources

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Bulk wave transmission by a multistrip coupler (MSC)

Archives of Acoustics, 2014
Multistrip coupler (MSC) is a component of SAW devices that couples surface acoustic waves (SAWs) propagating in two acoustic channels on piezoelectric substrate.
E. DANICKI
doaj  

Synthesis of anisotropic swirling surface acoustic waves by inverse filter, towards integrated generators of acoustical vortices

, 2015
From radio-electronics signal analysis to biological samples actuation, surface acoustic waves (SAW) are involved in a multitude of modern devices. Despite this versatility, SAW transducers developed up to date only authorize the synthesis of the most ...
Baudoin, Michaël, Bussonnière, Adrien, Charron, Eric, Matar, Olivier Bou, Riaud, Antoine, Thomas, Jean-Louis   +5 more
core   +2 more sources

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Modeling and simulation of the influence mechanism of ice accretion on SAW propagation

AIP Advances
Icing causes instantaneous attenuation of surface acoustic wave (SAW), which can be leveraged for fast and highly sensitive detection of ice accretion. However, the specific mechanism of acoustic attenuation during the icing process is unclear, leading ...
Zheng Zhao, Yining Yin, Baile Cui, Wen Wang   +3 more
doaj   +1 more source