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Diffraction of optical vortices
SPIE Proceedings, 1999Computer simulation of optical vortex diffraction on edge of nontransparent screen demonstrates the possibility for optical vortex to restore from the part of beam passing trough aperture. Regeneration of vortex is shown to take place for any part of the beam passing trough aperture, even if it does not contain vortex core.
I. G. Marienko +2 more
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Stationary nonlinear optical vortices
Optical Society of America Annual Meeting, 1992Stationary nonlinear propagation has been known to exist in slab waveguides, but not in bulk media. We have discovered that a stationary dark nonlinear wave does exist, and we will present our experimental and numerical measurements. This mode occurs in defocusing type nonlinear media and appears as an optical vortex, i.e., a black spot around which ...
G. A. Swartzlander, C. T. Law
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Journal of Optics, 2011
METATOYs are regular structures of optical elements that change the direction of light rays according to various generalized refraction laws. They may introduce discontinuities into transmitted wavefronts and create ray fields that do not have wave-optical analogies.
Johannes Courtial, Tomáš Tyc
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METATOYs are regular structures of optical elements that change the direction of light rays according to various generalized refraction laws. They may introduce discontinuities into transmitted wavefronts and create ray fields that do not have wave-optical analogies.
Johannes Courtial, Tomáš Tyc
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Science, 2020
Topological Optics Light has several degrees of freedom (wavelength, polarization, pulse length, and so on) that can be used to encode information. A light beam or pulse can also be structured to have the property of orbital angular momentum, becoming a vortex.
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Topological Optics Light has several degrees of freedom (wavelength, polarization, pulse length, and so on) that can be used to encode information. A light beam or pulse can also be structured to have the property of orbital angular momentum, becoming a vortex.
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SPIE Proceedings, 2014
Optical vortices are always created or annihilated in pairs with opposite topological charges. However, the presence of such a vortex dipole does not directly indicate whether they are associated with a creation or an annihilation event. Here we propose a method to distinguish between vortex dipoles that have just been created and those that are about ...
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Optical vortices are always created or annihilated in pairs with opposite topological charges. However, the presence of such a vortex dipole does not directly indicate whether they are associated with a creation or an annihilation event. Here we propose a method to distinguish between vortex dipoles that have just been created and those that are about ...
openaire +1 more source