Results 1 to 10 of about 12,469 (261)

Full degree-of-freedom polarization hologram by freeform exposure and inkjet printing

open access: yesPhotoniX, 2023
Since the invention of holography by Dennis Gabor, the fabrication of holograms has mainly relied on direct recording of wavefront by engraving the intensity fringes of interfering electric fields into the holographic material. The degree-of-freedom (DoF)
Jianghao Xiong   +4 more
doaj   +2 more sources

Integrated photonic polarization synthesizer and analyzer [PDF]

open access: yesLight: Science & Applications
Polarization-resolved control and measurement of optical fields are essential for a wide range of photonic systems, including coherent communication, polarimetric sensing, and quantum information processing.
Carson G. Valdez   +5 more
doaj   +2 more sources

Nested SU(2) symmetry of photonic orbital angular momentum

open access: yesFrontiers in Physics, 2023
The polarization state is described by a quantum mechanical two-level system, which is known as special unitary group of degree 2 [SU(2)]. Polarization is attributed to an internal spin degree of freedom inherent to photons, while photons also possess an
Shinichi Saito
doaj   +1 more source

Multi-party semi-quantum key distribution protocol based on hyperentangled Bell states

open access: yesFrontiers in Physics, 2022
Semi-quantum key distribution allows generating a raw key between two communication participants, in which the sender is a quantum participant and the receiver is a classical participant.
Yuan Tian   +3 more
doaj   +1 more source

Experiments and simulations of chiro-optical response in lowcost nanohole arrays in silver [PDF]

open access: yesEPJ Web of Conferences, 2022
2D metasurfaces based on periodic nanoholes in metal have been proposed in various plasmonic platforms. Specifically, their resonant features have led to applications spanning in biosensing.
Petronijevic Emilija   +8 more
doaj   +1 more source

Intrinsic valley polarization and anomalous valley hall effect in single-layer 2H-FeCl2

open access: yesChemPhysMater, 2022
Valley, as a new degree of freedom for electrons, has drawn considerable attention due to its significant potential for encoding and storing information. Lifting the energy degeneracy to achieve valley polarization is necessary for realizing valleytronic
Pei Zhao   +4 more
doaj   +1 more source

Observing polarization patterns in the collective motion of nanomechanical arrays

open access: yesNature Communications, 2022
Coupled nanomechanical resonator arrays serve as model systems to study collective dynamical phenomena. Doster et al. introduce a two-dimensional array of pillar resonators encoding a mechanical polarization degree of freedom for analyzing polarization ...
Juliane Doster   +5 more
doaj   +1 more source

Experimental generation of arbitrary abruptly autofusing Circular Airy Gaussian vortex vector beams

open access: yesScientific Reports, 2022
Complex vector modes represent a general state of light nonseparable in their spatial and polarization degrees of freedom, which have inspired a wide variety of novel applications and phenomena, such as their unexpected propagation behaviour. For example,
Xiao-Bo Hu   +3 more
doaj   +1 more source

Room-temperature valley transistors for low-power neuromorphic computing

open access: yesNature Communications, 2022
Valleytronic devices employ the electronic valley degree of freedom to realize potential low-power electronic applications. Here, the authors utilize a topological semiconductor to engineer valley polarization transistors with long lifetimes and ...
Jiewei Chen   +9 more
doaj   +1 more source

Resonant diffraction gratings with polarization-dependent efficiencies [PDF]

open access: yesEPJ Web of Conferences, 2020
Subwavelength-structures with different fill factors in the lateral dimensions result in unique phase shifts for the different polarization states of transmitted light. By using this additional degree of freedom for diffractive optical elements, we yield
Wüster Julian   +3 more
doaj   +1 more source

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