Results 21 to 30 of about 190,833 (286)
Micromachines, 2022 The highly focused laser beam is capable of confining micro-sized particle in its focus. This is widely known as optical trapping. The Janus particle is composed of two hemispheres with different refractive indexes.
Xiaoqing Gao +5 more
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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 +7 more
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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 +4 more
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Optical Trapping of Nanoparticles [PDF]
Journal of Visualized Experiments, 2013 Optical trapping is a technique for immobilizing and manipulating small objects in a gentle way using light, and it has been widely applied in trapping and manipulating small biological particles. Ashkin and co-workers first demonstrated optical tweezers using a single focused beam.
Jarrah, Bergeron +4 more
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Toward the Stable Optical Trapping of a Droplet with Counter Laser Beams under Microgravity [PDF]
, 2006 To identify the optimum conditions for the optical trapping of a droplet under microgravity, we theoretically analyzed the efficiency of trapping with counter laser beams.
Akihiro Isomura +15 more
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Optically programmable excitonic traps [PDF]
Scientific Reports, 2013 With atomic systems, optically programmed trapping potentials have led to remarkable progress in quantum optics and quantum information science. Programmable trapping potentials could have a similar impact on studies of semiconductor quasi-particles, particularly excitons.
Mathieu Alloing +3 more
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Practical axial optical trapping [PDF]
Review of Scientific Instruments, 2012 We describe a new method for calibrating optical trapping measurements in which tension is applied in the direction of the laser beam to a molecule tethered between a surface and an optically trapped bead. Specifically, we present a generally-applicable procedure for converting from the measured scattering intensity and the measured stage displacement ...
A H, Mack +3 more
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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
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Energy Reviews, 2023 Optical tweezers system has emerged as an efficient tool to manipulate tiny particles in a non-invasive way. Trapping stiffness, as an essential parameter of an optical potential well, represents the trapping stability.
Xiaolin Chen +10 more
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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
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