Results 31 to 40 of about 73,961 (314)
Positioning Accuracy in Holographic Optical Traps
Micromachines, 2021 Spatial light modulators (SLMs) have been widely used to achieve dynamic control of optical traps. Often, holographic optical tweezers have been presumed to provide nanometer or sub-nanometer positioning accuracy.
Frederic Català-Castro +1 more
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Optical Trapping of Electrons in Graphene [PDF]
ACS Photonics, 2018 We propose an experimentally friendly scheme for trapping quasi- relativistic elec- trons in graphene by an electromagnetic beam with circular polarization and spatially inhomogeneous profile with an intensity dip. The trapping is achieved due to the ef- fect of bandgap opening outside the trapping region.
Skender Morina +3 more
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Lightsheet optical tweezer (LOT) for optical manipulation of microscopic particles and live cells
Scientific Reports, 2022 Optical trapping and patterning cells or microscopic particles is fascinating. We developed a light sheet-based optical tweezer to trap dielectric particles and live HeLa cells.
Partha Pratim Mondal +4 more
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Forced Atom Interferometers in Optical Harmonic Potentials
AtomsWe present a study of Doppler-sensitive light-pulse atom interferometers operating within optical dipole potentials, where atomic trajectories are manipulated using momentum transfer from light pulses and optical forces from the trap.
Mingjie Xin +3 more
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Novel Ion Trap Design for Strong Ion-Cavity Coupling
Atoms, 2016 We present a novel ion trap design which facilitates the integration of an optical fiber cavity into the trap structure. The optical fibers are confined inside hollow electrodes in such a way that tight shielding and free movement of the fibers are ...
Alejandro Márquez Seco +2 more
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Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity
New Journal of Physics, 2021 While compressing a colloidal state by optical means alone has been previously achieved through a specific time-dependence of the trap stiffness, realizing quickly the reverse transformation stumbles upon the necessity of a transiently expulsive trap. To
Parvin Bayati, Emmanuel Trizac
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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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Plasmon-assisted optical trapping and anti-trapping
Light: Science & Applications, 2016 The ability to manipulate small objects with focused laser beams has opened a venue for investigating dynamical phenomena relevant to both fundamental and applied science. Nanophotonic and plasmonic structures enable superior performance in optical trapping via highly confined near-fields.
Ivinskaya, Aliaksandra +5 more
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AIP Advances, 2023 We experimentally investigate trap-loss spectra of the cesium 6S1/2(F = 4) → 71P3/2 Rydberg transition by combining the cesium atomic magneto-optical trap with the narrow-linewidth, continuously tunable 318.6 nm ultraviolet laser. Specifically, the atoms
Xin Wang +8 more
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Modeling of optical traps for aerosols [PDF]
Journal of the Optical Society of America B, 2011 Experimental observations suggest that there are differences between the behavior of particles optically trapped in air and trapped in a liquid phase. We present a modified version of Mie Debye Spherical Aberration theory to numerically simulate such optical system in attempt to explain and predict these effects.
Burnham, Daniel R., McGloin, David
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