Results 261 to 270 of about 2,371 (296)

Extreme sensitivity label-free biosensing platform based on topologically disruptive phase nano-optics. [PDF]

Microsyst Nanoeng
Du F, Gireau M, Youssef J, Humbert G, Vergnole S, Dumas-Bouchiat F, Champeaux C, Zeng S.   +7 more
europepmc   +1 more source

High-dimensional multiplexing through vortex electromagnetic wave manipulation by space-time-coding metasurfaces. [PDF]

Light Sci Appl
Yang C, Wang SR, Du JC, Wang MT, Wang ZX, Chan KF, Zheng DZ, Wu GB.   +7 more
europepmc   +1 more source

Topological links and knots of speckled light mediated by coherence singularities. [PDF]

Light Sci Appl
Wang Z, Lu X, Chen Z, Cai Y, Zhao C.
europepmc   +1 more source

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ON CONTINUATION OF FUNCTIONS WITH POLAR SINGULARITIES

Mathematics of the USSR-Sbornik, 1988
See the review in Zbl 0617.32018.
Sadullaev, A., Chirka, E. M.
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Singular points of the polarization tensor

Solar Physics, 1996
The problem to compute the magnetic field above the chromosphere using data of the vector τ = B t /B t that gives the projected field direction can be solved with different approximations. The field of direction vectors τ is, however, not the only field accessible to observations. The Stokes parameters, which are components of the radiation tensor, can
M. M. Molodensky, L. I. Starkova
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Emergent polarization singularities

Optics Letters, 2004
Polarization singularities are shown to emerge spontaneously from the incoherent addition of uncorrelated optical fields that individually need not contain singularities. Examples of this phenomenon are given for both vector and ellipse fields. The incoherent addition of vector fields whose singularities have integer winding numbers is shown to yield ...
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Polychromatic polarization singularities

Optics Letters, 2003
Elliptical polarization can appear in only monochromatic optical fields. In polychromatic vector fields the polarization is a Lissajous figure, but in only commensurate fields do the figures have well-defined shapes; in other fields the shapes are undefined.
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Polarization degree singularities

SPIE Proceedings, 2009
New type of vector singularities inherent in partially coherent combined beams is explored. There are the polarization degree singularities, such as U (unpolarized) and P (completely polarized) elements of a field. The fundamental properties of such singularities are derived for the general case of elliptical polarization basis using the notion ...
Peter V. Polyanskii, Christina V. Felde, Alex A. Chernyshov   +2 more
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Interferometric methods in diagnostics of polarization singularities

Physical Review E, 2002
An interferometric technique for analysis of a polarization singular skeleton (s contours and C points) of an optical vector field is elaborated. It was shown that complete characteristics of C points and s contours may be reconstructed from interferometric data.
Oleg V, Angelsky, Igor I, Mokhun, Alexey I, Mokhun, Marat S, Soskin   +3 more
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Polarization singularities in optical lattices

Optics Letters, 2004
Polarization singularities are shown to be unavoidable features of three-dimensional optical lattices. These singularities take the form of lines of circular polarization, C lines, and lines of linear polarization, L lines. The polarization figures surrounding a C line (L line) rotate about the line with winding number +/-1/2 (+/-1).
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