Results 11 to 20 of about 73,961 (314)
Chirality in Optical Trapping and Optical Binding [PDF]
Photonics, 2015 Optical trapping is a well-established technique that is increasingly used on biological substances and nanostructures. Chirality, the property of objects that differ from their mirror image, is also of significance in such fields, and a subject of much ...
David S. Bradshaw +3 more
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Bacterial chemotaxis in an optical trap. [PDF]
PLoS ONE, 2011 An optical trapping technique is implemented to investigate the chemotactic behavior of a marine bacterial strain Vibrio alginolyticus. The technique takes the advantage that the bacterium has only a single polar flagellum, which can rotate either in the
Tuba Altindal +2 more
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Enhanced optical trapping [PDF]
Optical Manipulation and Structured Materials Conference 2020, 2020 Optical tweezers have contributed substantially to the advancement of micro-manipulation. However, they do have restrictions, mainly the limited range of materials that yield to optical trapping. Here we propose a method of employing optically trapped objects to manipulate the surrounding fluid and thus particles freely diffusing within it.
Butaite, Une G. +5 more
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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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Holographic optical trapping [PDF]
Applied Optics, 2006 8 pages, 7 figures, invited contribution to Applied Optics focus issue on Digital ...
Grier, David G., Roichman, Yael
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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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A vector holographic optical trap. [PDF]
Sci Rep, 2018 AbstractThe invention of optical tweezers almost forty years ago has triggered applications spanning multiple disciplines and has also found its way into commercial products. A major breakthrough came with the invention of holographic optical tweezers (HOTs), allowing simultaneous manipulation of many particles, traditionally done with arrays of scalar
Bhebhe N +4 more
europepmc +4 more sources
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. +3 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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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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