Results 31 to 40 of about 2,361,376 (289)

Optical trapping of an ion [PDF]

Nature Photonics, 2010
For several decades, ions have been trapped by radio frequency (RF) and neutral particles by optical fields. We implement the experimental proof-of-principle for trapping an ion in an optical dipole trap. While loading, initialization and final detection are performed in a RF trap, in between, this RF trap is completely disabled and substituted by the ...
Schneider, Christian M., Enderlein, Martin, Huber, Thomas, Schätz, Tobias   +3 more
openaire   +4 more sources

Independent trapping, manipulation and characterization by an all-optical biophotonics workstation [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
Optical trapping has enabled a multitude of applications focusing, in particular, on non-invasive studies of cellular material. The full potential of optical trapping has, however, not yet been exploited due to restricted access to the trapped samples ...
Ulriksen Hans-Ulrik, Thøgersen Jan, Keiding Søren R., Perch-Nielsen Ivan R., Dam Jeppe S., Palima Darwin Z., Stapelfeldt Henrik, Glückstad Jesper   +7 more
doaj   +1 more source

Optical Trapping at Gigapascal Pressures [PDF]

Physical Review Letters, 2013
Diamond anvil cells allow the behavior of materials to be studied at pressures up to hundreds of gigapascals in a small and convenient instrument. However, physical access to the sample is impossible once it is pressurized. We show that optical tweezers can be used to hold and manipulate particles in such a cell, confining micron-sized transparent ...
Bowman, R.W., Gibson, G.M., Padgett, M.J., Saglimbeni, F., Di Leonardo, R.   +4 more
openaire   +3 more sources

Optical trapping and manipulation of nanostructures [PDF]

Nature Nanotechnology, 2013
Optical trapping and manipulation of micrometre-sized particles was first reported in 1970. Since then, it has been successfully implemented in two size ranges: the subnanometre scale, where light-matter mechanical coupling enables cooling of atoms, ions and molecules, and the micrometre scale, where the momentum transfer resulting from light ...
Maragò, O. M., Jones, P. H., Gucciardi, P. G., Volpe, G., Ferrari, A. C.   +9 more
openaire   +7 more sources

Optical Trapping, Sensing, and Imaging by Photonic Nanojets

Photonics, 2021
The optical trapping, sensing, and imaging of nanostructures and biological samples are research hotspots in the fields of biomedicine and nanophotonics.
Heng Li, Wanying Song, Yanan Zhao, Qin Cao, Ahao Wen   +4 more
doaj   +1 more source

Plasmonic effects upon optical trapping of metal nanoparticles [PDF]

, 2010
Optical trapping of metal nanoparticles investigates phenomena at the interface of plasmonics and optical micromanipulation. This thesis combines ideas of optical properties of metals originating from solid state physics with force mechanism resulting ...
Dienerowitz, Maria
core   +2 more sources

Optical trapping with a perfect vortex beam [PDF]

, 2014
The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.Vortex beams with different topological charge usually have different profiles and radii of peak intensity.
Arita, Yoshihiko, Ewan M. Wright, Wright, Ewan M., Michael Mazilu, Chen, Mingzhou, Mazilu, Michael, Dholakia, Kishan, Yoshihiko Arita, Mingzhou Chen, Kishan Dholakia   +9 more
core   +1 more source

A hybrid method to calculate optical torque: Application to a nano-dumbbell trapped by a metalens

AIP Advances, 2022
The hyper-fast rotation frequency realized in an optical levitation system provides an essential platform for various applications. Benefiting from the development of integrated photonics, optically trapping and manipulating a micro-particle via a ...
Chuang Sun, Jize Yan
doaj   +1 more source

Microrheology With an Anisotropic Optical Trap [PDF]

Frontiers in Physics, 2021
Microrheology with optical tweezers (MOT) measurements are usually performed using optical traps that are close to isotropic across the plane being imaged, but little is known about what happens when this is not the case. In this work, we investigate the effect of anisotropic optical traps on microrheology measurements.
Matheson, Andrew B., Mendonca, Tania, Gibson, Graham M., Dalgarno, Paul A., Wright, Amanda J., Paterson, Lynn, Tassieri, Manlio   +6 more
openaire   +4 more sources

Scalable trapping of single nanosized extracellular vesicles using plasmonics

Nature Communications, 2023
Heterogeneous nanoscale extracellular vesicles (EVs) are of significant interest for disease detection, monitoring, and therapeutics. However, trapping these nano-sized EVs using optical tweezers has been challenging due to their small size.
Chuchuan Hong, Justus C. Ndukaife
doaj   +1 more source