Results 1 to 10 of about 15,117 (175)

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

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   +2 more sources

Metasurface higher-order poincaré sphere polarization detection clock [PDF]

open access: yesLight: Science & Applications
Accurately and swiftly characterizing the state of polarization (SoP) of complex structured light is crucial in the realms of classical and quantum optics. Conventional strategies for detecting SoP, which typically involves a sequence of cascaded optical
Hui Yang   +10 more
doaj   +2 more sources

Exploiting hidden singularity on the surface of the Poincaré sphere [PDF]

open access: yesNature Communications
The classical Pancharatnam-Berry phase, a variant of the geometric phase, arises purely from the modulation of the polarization state of a light beam. Due to its dependence on polarization changes, it cannot be effectively utilized for wavefront shaping ...
Jinxing Li   +5 more
doaj   +2 more sources

Poincaré sphere trajectory encoding metasurfaces based on generalized Malus’ law [PDF]

open access: yesNature Communications
As a fundamental property of light, polarization serves as an excellent information encoding carrier, playing significant roles in many optical applications, including liquid crystal displays, polarization imaging, optical computation and encryption ...
Zi-Lan Deng   +6 more
doaj   +2 more sources

Polarization-Resolved Speckle Technique for Rapid Non-Destructive Characterization of Macroporous Silica Thin Films [PDF]

open access: yesSensors
Macroporous silica thin films were synthesized via the sol–gel method to elucidate the relationship between pore structure and the degree of polarization of light (DoP).
Yaiza Lozano   +2 more
doaj   +2 more sources

Sphere of arbitrarily polarized exceptional points with a single planar metasurface [PDF]

open access: yesNature Communications
Exceptional points (EPs) are spectral singularities of non-Hermitian systems and represent the coalescence of eigenvalues and eigenstates. Traditional photonic systems typically exhibit coalesced eigenstates that correspond to circular polarizations of a
Haoye Qin   +12 more
doaj   +2 more sources

Structuring polarization states of light in space and time [PDF]

open access: yesNanophotonics
The spatiotemporal sculpturing of light beams with arbitrary phase and polarization topologies has garnered significant attention in recent years due to its potential to advance optical technologies and reveal novel physical phenomena.
Pires Danilo Gomes   +3 more
doaj   +2 more sources

Mapping partially polarized light to incoherent superpositions of vector beams and vortex beams with orbital angular momentum [PDF]

open access: yesEPJ Web of Conferences, 2023
Fully polarized light, cylindrical vector beams, and beams with opposite orbital angular momentum (OAM) and their superpositions are respectively represented as points on the Poincaré sphere (PS), the higher-order Poincaré sphere (HOPS) and the OAM ...
Marco David   +3 more
doaj   +1 more source

Geometric Representation of Vector Vortex Beams: The Total Angular Momentum-Conserving Poincaré Sphere and Its Braid Clusters

open access: yesPhotonics, 2023
This paper presents the total angular momentum-conserving Poincaré sphere (TAM-C PS), which offers a novel framework for efficiently characterizing a wide range of vector vortex beams.
Wangke Yu   +3 more
doaj   +1 more source

Singular value representation of the coherence Poincaré sphere

open access: yesJournal of the European Optical Society-Rapid Publications, 2022
The so-called coherence Poincaré sphere was recently introduced for geometrical visualization of the state of two-point spatial coherence of a random electromagnetic beam. The formalism and its interpretation strongly utilized a specific decomposition of
Laatikainen Jyrki   +3 more
doaj   +1 more source

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