Results 121 to 130 of about 2,721,612 (374)

Sagnac Interferometer Enhanced Particle Tracking in Optical Tweezers

, 2010
A setup is proposed to enhance tracking of very small particles, by using optical tweezers embedded within a Sagnac interferometer. The achievable signal-to-noise ratio is shown to be enhanced over that for a standard optical tweezers setup.
Berne B J, H-A Bachor, Hsu M T L, J Knittel, M A Taylor, M T L Hsu, Sehgal H, Treps N, Van De Hulst H C, W P Bowen   +9 more
core   +1 more source

Rotating optical tweezers [PDF]

SPIE Proceedings, 2005
Several methods to rotate and align microscopic particles controllably have been developed. Control of the orientation of a trapped particle allows full three dimensional manipulation, whereas rotating particles are tools for the development of optically-driven micromachines. It has been shown that the orientation of an object in the laser trap depends
Timo A. Nieminen, Halina Rubinsztein-Dunlop, Norman R. Heckenberg, Ursula J. Gibson, Wolfgang Singer   +4 more
openaire   +2 more sources

Bio-Molecular Applications of Recent Developments in Optical Tweezers

Biomolecules, 2019
In the past three decades, the ability to optically manipulate biomolecules has spurred a new era of medical and biophysical research. Optical tweezers (OT) have enabled experimenters to trap, sort, and probe cells, as well as discern the structural ...
Dhawal Choudhary, A. Mossa, M. Jadhav, C. Cecconi   +3 more
semanticscholar   +1 more source

Flexible 3D Kirigami Probes for In Vitro and In Vivo Neural Applications

Advanced Materials, EarlyView.
A customizable and scalable approach to fabricate flexible 3D kirigami microelectrode arrays (MEAs) featuring up to 128 shanks, including surface and penetrating electrodes designed to interact with the 3D space of neural tissue, is presented. The 3D kirigami MEAs are successfully deployed in several neural applications, both in vitro and in vivo, and ...
Marie Jung, Jamal Abu Shihada, Simon Decke, Lina Koschinski, Peter Severin Graff, Sebastián Maruri Pazmino, Anke Höllig, Henner Koch, Simon Musall, Andreas Offenhäusser, Viviana Rincón Montes   +10 more
wiley   +1 more source

Plasmonic Tweezers towards Biomolecular and Biomedical Applications

Applied Sciences, 2019
With the capability of confining light into subwavelength scale, plasmonic tweezers have been used to trap and manipulate nanoscale particles. It has huge potential to be utilized in biomolecular research and practical biomedical applications.
Xue Han, Changsen Sun
doaj   +1 more source

Optical Calibration of Holographic Acoustic Tweezers [PDF]

in IEEE Transactions on Instrumentation and Measurement, vol. 72, pp. 1-8, 2023, , Art no. 9600808
Recently, acoustic tweezers based on an array of ultrasonic transducers have been reported taking inspiration from holographic optical tweezers. In the latter technique, the calibration of the optical trap is an essential procedure to obtain the trap stiffnesses.
arxiv   +1 more source

Sculpting and fusing biomimetic vesicle networks using optical tweezers

Nature Communications, 2018
Constructing higher-order vesicle assemblies has discipline-spanning potential from responsive soft-matter materials to artificial cell networks in synthetic biology.
G. Bolognesi, M. Friddin, A. Salehi-Reyhani, N. Barlow, N. Brooks, O. Ces, Y. Elani   +6 more
semanticscholar   +1 more source

Superior Adhesion of Monolayer Amorphous Carbon to Copper

Advanced Materials, EarlyView.
The adhesion energy of monolayer amorphous carbon on copper substrate is 85 J m−2, 13 times higher than that of graphene due to covalent‐like bonding between the sp2 carbon structure to copper. X‐ray photoelectron spectroscopy (XPS), near‐edge X‐ray absorption (NEXAFS), and (density functional theory) DFT calculations are used to elucidate the ...
Hongji Zhang, Artem K. Grebenko, Konstantin V. Iakoubovskii, Hanning Zhang, Ruslan Yamaletdinov, Anna Makarova, Alexander Fedorov, Rejaul SK, Ranjith Shivajirao, Zheng Jue Tong, Sergey Grebenchuk, Ugur Karadeniz, Lu Shi, Denis V. Vyalikh, Ya He, Andrei Starkov, Alena A. Alekseeva, Chuan Chu Tee, Carlo Mendoza Orofeo, Junhao Lin, Kazutomo Suenaga, Michel Bosman, Maciej Koperski, Bent Weber, Kostya S. Novoselov, Oleg V. Yazyev, Chee‐Tat Toh, Barbaros Özyilmaz   +27 more
wiley   +1 more source

Ultra-short bandwidth optical tweezer generation using GaAs ring resonator system

Results in Physics, 2019
In this article, the modified add/drop multiplexer system as ring resonator is proposed for optical tweezers generation. The entire effect is analyzed by the nonlinear existence of the proposed structure.
I.S. Amiri, T. Anwar, D. Vigneswaran, P. Yupapin   +3 more
doaj  

Gray molasses cooling of ^{39}K atoms in optical tweezers

Physical Review Research, 2022
Robust cooling and nondestructive imaging are prerequisites for many emerging applications of neutral atoms trapped in optical tweezers, such as their use in quantum information science and analog quantum simulation.
Jackson Ang'ong'a, Chenxi Huang, Jacob P. Covey, Bryce Gadway   +3 more
doaj   +1 more source