Results 101 to 110 of about 104,594 (185)

Spin‐Orbit Photonics with Potato Starch Lenses

open access: yesAdvanced Optical Materials, EarlyView.
Native potato starch spherulites are introduced as volumetric optical elements that modulate both dynamic and geometric phases of light. These spherulites focus light and generate optical vortices via spin‐orbit interaction, functioning as polarization‐sensitive microlenses. Their unique radial anisotropy enables applications in vortex beam generation,
Petr Bouchal   +4 more
wiley   +1 more source

Emergence as the conversion of information: a unifying theory. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2022
Varley TF, Hoel E.
europepmc   +1 more source

Highly Efficient Upconverted Fluorescence from Coulombically Assembled Ion Pair

open access: yesAdvanced Optical Materials, EarlyView.
A dicationic Os(II) complex paired with two monoanionic fluorophores is designed to enable highly efficient triplet–triplet annihilation upconversion, achieving a remarkable upconverted fluorescence quantum yield of 13% at 785 nm excitation with a record‐low threshold intensity of 5.9 mW cm⁻2, attributed to diffusion‐free acceleration of energy ...
Ji Hye Baek   +6 more
wiley   +1 more source

Analysis of Band Effects in One‐Dimensional Periodic Lattices Using an Enhanced Homogenization Method

open access: yesAdvanced Photonics Research, EarlyView.
An enhanced homogenization method for periodic lattices, applicable to any asymmetrical multipart structures, is proposed. This method simplifies intricate gratings into slab waveguides, predicts guided‐mode resonances and bound states in the continuum, without relying on numerical methods.
Atefe Taheri, Mehrdad Shokooh‐Saremi
wiley   +1 more source

Enhancement of the Optoelectric and Photovoltaic Responses of Al/PVP:ZnTiO3/p‐Si Structure by Graphene Nanoparticles

open access: yesAdvanced Photonics Research, EarlyView.
This study investigates the optoelectronic response of Al/p‐Si photodiodes with and without a (PVP:Gr‐ZnTiO3) interlayer under varying light intensities. Key parameters are analyzed, revealing that the interlayer enhances photosensitivity, optical responsivity, and specific detectivity.
Ali Barkhordari   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy