Results 241 to 250 of about 42,393 (288)

High-Frame-Rate Echocardiography: A New Frontier in Noninvasive Functional Assessment. [PDF]

open access: yesJ Clin Med
Mashayekhi F   +6 more
europepmc   +1 more source

Mutual friction and vortex Hall angle in a strongly interacting Fermi superfluid. [PDF]

open access: yesNat Commun
Grani N   +10 more
europepmc   +1 more source

Modulated optical vortices

Optics Letters, 2003
Single-beam optical gradient force traps created by focusing helical modes of light are known as optical vortices. Modulating the helical pitch of such a mode's wave front yields a new class of optical traps whose dynamically reconfigurable intensity distributions provide new opportunities for controlling motion in mesoscopic systems. An implementation
Jennifer E, Curtis, David G, Grier
openaire   +4 more sources

Structure of Optical Vortices

Physical Review Letters, 2003
Helical modes of light can be focused into toroidal optical traps known as optical vortices, which are capable of localizing and applying torques to small volumes of matter. Measurements of optical vortices created with the dynamic holographic optical tweezer technique reveal an unsuspected dependence of their structure and angular momentum flux on ...
Jennifer E, Curtis, David G, Grier
openaire   +4 more sources

Nonlinear Optical Vortices

Nonlinear Optics: Materials, Fundamentals, and Applications, 1992
Dark soliton stripes (DSS’s) and grids were recently discovered in the cross-section of a laser beam [1] which propagates through a self-defocusing medium. Now we find that a dark soliton stripe can spawn optical vortex pairs of opposite topological charge when subjected to transverse modulations whose period exceeds the soliton size.
G. A. Swartzlander, C. T. Law
openaire   +1 more source

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