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Review of Scientific Instruments, 2004 Since their invention just over 20 years ago, optical traps have emerged as a powerful tool with broad-reaching applications in biology and physics. Capabilities have evolved from simple manipulation to the application of calibrated forces on—and the measurement of nanometer-level displacements of—optically trapped objects.
Keir C, Neuman, Steven M, Block
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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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Optical trapping core formation and general trapping mechanism in single-beam optical tweezers
New Journal of Physics, 2022 The working mechanism of single-beam optical tweezers is revisited using a recently established method. The optical force is split into conservative and nonconservative components, and these components are explicitly calculated for particles in the ...
Di Huang +7 more
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Ramsey Imaging of Optical Traps [PDF]
Physical Review Applied, 2021 Mapping the potential landscape with high spatial resolution is crucial for quantum technologies based on ultracold atoms. Yet, imaging optical dipole traps is challenging because purely optical methods, commonly used to profile laser beams in free space, are not applicable in vacuum.
Gautam Ramola +6 more
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Optical trapping at low numerical aperture [PDF]
Journal of the European Optical Society-Rapid Publications, 2011 A theory of optical trapping at low Numerical Aperture (NA) is presented. The theory offers an analytical description of the competition between the stabilizing gradient and destabilizing scattering force.
Stallinga S.
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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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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. +4 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 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 +9 more
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