Results 1 to 10 of about 279 (64)

Evolution of C-point singularities and polarization coverage of Poincaré–Bessel beam in self-healing process [PDF]

open access: yesScientific Reports
As a vector version of scalar Bessel beams, Poincaré–Bessel beams (PBBs) have attracted a great deal of attention due to their non-diffracting and self-healing properties as well as the presence of polarization singularities.
Subith Kumar   +4 more
doaj   +2 more sources

Experimental Mueller matrix polarimetry with full Poincaré beams and a CCD camera [PDF]

open access: yesEPJ Web of Conferences, 2021
Recently, the use of full Poincaré beams for extracting the Mueller matrix of a sample has been proposed. These beams present all possible polarization states across their transverse section.
Suárez-Bermejo Juan Carlos   +3 more
doaj   +1 more source

Full Poincaré Mueller Polarimetry Using a CCD Camera

open access: yesPhotonics, 2022
A new method is proposed to perform Mueller matrix polarimetry using a Full Poincaré beam (i.e., a non-uniformly polarized beam presenting all polarization states across its section) as a parallel polarization state generator and a charge-coupled device (
Juan Carlos Suárez-Bermejo   +4 more
doaj   +1 more source

Microcavity-based generation of full Poincaré beams with arbitrary skyrmion numbers

open access: yesPhysical Review Research, 2021
A full Poincaré (FP) beam possesses all possible optical spin states in its cross section, which constitutes an optical analog of a skyrmion. Until now FP beams have been exclusively generated using bulk optics.
Wenbo Lin   +3 more
doaj   +1 more source

Inverse Faraday effect of weakly relativistic full Poincaré beams in plasma

open access: yesMatter and Radiation at Extremes, 2023
The inverse Faraday effect (IFE), which usually refers to the phenomenon in which a quasi-static axial magnetic field is self-generated when a circularly polarized beam propagates in a plasma, has rarely been studied for lasers with unconventional ...
Wei Liu, Qing Jia, Jian Zheng
doaj   +1 more source

Mueller Matrix Polarimetry with Invariant Polarization Pattern Beams

open access: yesPhotonics, 2021
A wide class of nonuniformly totally polarized beams that preserve their transverse polarization pattern during paraxial propagation was studied. Beams of this type are of interest, in particular, in polarimetric techniques that use a single input beam ...
Juan Carlos González de Sande   +3 more
doaj   +1 more source

Arbitrary polarization conversion dichroism metasurfaces for all-in-one full Poincaré sphere polarizers

open access: yesLight: Science & Applications, 2021
The control of polarization, an essential property of light, is of broad scientific and technological interest. Polarizers are indispensable optical elements for direct polarization generation.
Shuai Wang   +8 more
doaj   +1 more source

Free electron laser generation of x-ray Poincaré beams

open access: yesNew Journal of Physics, 2020
An optics-free method is proposed to generate x-ray radiation with spatially variant states of polarization via an afterburner extension to a free electron laser.
Jenny Morgan   +3 more
doaj   +1 more source

Terahertz all-silicon metasurfaces with off-axis bifocal characteristics for polarization detection

open access: yesNanophotonics, 2023
Functional devices for terahertz (THz) polarization detection in transmission mode are highly desired in integrated applications, but traditional polarization measurement systems are bulky and highly cost. The combination between all-silicon metasurfaces
Li Hui   +10 more
doaj   +1 more source

Non-uniformly totally polarized beams with invariant polarization pattern in media with natural optical activity [PDF]

open access: yesEPJ Web of Conferences
Non-uniformly and totally polarized (NUTP) beams have been proved to be useful in polarimetry, because they make faster and more accurate the determination of the Mueller matrix of sample.
Piquero Gemma   +3 more
doaj   +1 more source

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