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Direct Imaging of a Digital-Micromirror Device for Configurable Microscopic Optical Potentials
Optica, 2016 Programmable spatial light modulators have significantly advanced the configurable optical trapping of particles. Typically, these devices are utilized in the Fourier plane of an optical system, but direct imaging of an amplitude pattern can potentially ...
Guillaume Gauthier +2 more
exaly +2 more sources
Motion of Bio-Hybrid Microswimmers in Optical Potentials
, 2017 The behavior of microswimmers in the form of half-gold-coated silica Janus spheres with attached bacteria through streptavidin-biotin binding is studied in harmonic optical potentials, as well as in more complex (speckle) optical ...
Giovanni Volpe +2 more
exaly +2 more sources
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Causality with noncausal optical potentials
Physical Review C, 1995It is shown by way of a simplified model that the calculation of the time nonlocal potential resulting from an energy-dependent optical potential is not unique. Most choices result in a noncausal time-dependent potential, in spite of the inclusion of appropriate scattering boundary conditions in the model.
, Madsen, , Goldman
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The Potential of Optical Layer Networks
Optical Fiber Communication Conference and International Conference on Quantum Information, 2001There is enormous potential in newly emerging optical layer networks that support a rapidly growing Internet backbone. This potential stems from the value of extended reach to remove costly regenerators, the value of configurability to reduce provisioning times between IP routers, and the value of optical peering to increase the efficiency of the EP ...
R.E. Wagner +2 more
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Nucleon-Antinucleon Optical Potential
Physical Review Letters, 1982A model has been constructed for nucleon-antinucleon annihilation which is of short range but is state (energy, spin, isospin, ...) dependent as dictated by the calculation of annihilation diagrams. This model fulfills general theoretical requirements and, at the same time, provides a good fit of the presently available pp-bar experimental data; better
Cote, J. +4 more
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New parametrization of the optical potential
Physical Review C, 1994Recent experimental results have shown that the optical potential is much more repulsive at energies above 400 MeV/nucleon than believed at the beginning of the eighties. Taking these new data into account we present a new parametrization of the optical potential, of the underlying bare nucleon-nucleon interaction, as well as of its expectation value ...
, Hartnack, , Aichelin
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On the theory of the optical potential
Annals of Physics, 1969Abstract We consider elastic scattering of a projectile by a complex many-body system. The incident energy is assumed high enough so that closure may be used on the target, and the problem is reduced to computing the target ground-state expectation value of the scattering amplitude from A fixed scattering centers.
L.L Foldy, J.D Walecka
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Potential mapping of optical tweezers
Optics Letters, 2011Optical tweezers are very often used for measurement of piconewton range forces. Depending on the displacement of the trapped bead, the trap may become stiffer which causes considerable underestimation of the measured force. We have shown, both by theory and experiment, that such a stiffening occurs for beads larger than 0.5 μm in radius. For the first
Tahmineh, Godazgar +2 more
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Journal of Mathematical Physics, 1986
The possibility of confining a quantum particle in an optical potential, the imaginary part of which would be related to the existence of inelastic reaction channels coupled to the elastic one, is considered. Pure imaginary potentials of various (constant, linear, and parabolic) radial shapes are studied.
F. J. Gomez, M. F. Rañada, J. Sesma
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The possibility of confining a quantum particle in an optical potential, the imaginary part of which would be related to the existence of inelastic reaction channels coupled to the elastic one, is considered. Pure imaginary potentials of various (constant, linear, and parabolic) radial shapes are studied.
F. J. Gomez, M. F. Rañada, J. Sesma
openaire +1 more source