Results 151 to 160 of about 634,404 (332)

Magneto-optical polarization texturing

open access: yesJournal of Modern Optics
Left and right circularly polarized transverse electromagnetic waves propagate at slightly different speeds in a magnetic material leading to a polarization rotation by an amount proportional to the projection of the magnetic field along the direction of the wave propagation. We show how this magneto-optical effect can serve as a vectorial polarization
Koksal, Koray   +3 more
openaire   +2 more sources

Interferometric wavefront sensing for extreme adaptive optics [PDF]

open access: yes, 2004
Adaptive optics is concerned with the correction of phase distortions in wavefronts which degrade the quality of images produced by optical systems. It was originally developed for both astronomy and the military, where the Earth's atmosphere causes ...
Oag, Thomas J. D., Oag, Thomas J D
core  

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

open access: yesAdvanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale   +6 more
wiley   +1 more source

An embedded adaptive optics real time controller [PDF]

open access: yes, 2007
The design and realisation of a low cost, high speed control system for adaptive optics (AO) is presented. This control system is built around a field programmable gate array (FPGA).
Saunter, Christopher D.   +1 more
core  

Type‐II Dirac Fermions in Monolayer In2O: Interplay of Magnetotransport, Spin Hall Effect, and Superconductivity

open access: yesAdvanced Science, EarlyView.
First‐principles calculations reveal that monolayer In2O${\rm In}_2{\rm O}$ hosts type‐II Dirac fermions near the Fermi level, which split into Weyl points under spin‐orbit coupling. The material exhibits negative and giant magnetoresistance, a pronounced spin Hall effect, and phonon‐mediated superconductivity at 1.5 K, establishing it as a unique ...
Qing‐Bo Liu   +6 more
wiley   +1 more source

Hybrid Ni/SiO2/Au dimer arrays for high-resolution refractive index sensing

open access: yesNanophotonics, 2018
We introduce a novel magnetoplasmonic sensor concept for sensitive detection of refractive index changes. The sensor consists of a periodic array of Ni/SiO2/Au dimer nanodisks.
Pourjamal Sara   +4 more
doaj   +1 more source

A chirped, pulsed laser system and magneto-optical trap for rubidium [PDF]

open access: yes, 2009
This thesis covers the construction and characterisation of a magneto-optical trap (MOT) for 85Rb from the very beginning. It details both the optical and mechanical aspects from laser diode assembly, tuning and stabilisation to the preparation and ...
Patel, Sunil
core  

Two‐Dimensional Triferroics: From Fundamental Couplings to Multifunctional Applications

open access: yesAdvanced Science, EarlyView.
This graphic summarizes the three main types of currently reported 2D triferroic couplings. From the structural perspective, existing systems can be broadly classified into two categories, which exhibit distinct symmetry features and coupling behaviors. Beyond the lattice difference, a third type involves the interplay among ferroelectricity, magnetism,
Yang Li, Jialin Gong, Zhiqing Li
wiley   +1 more source

Tuneable magneto-optical metamaterials based on photonic resonances in nickel nanorod arrays

open access: yesMaterials Research Express, 2014
We investigate the magneto-optical properties of a nanostructured metamaterial comprised of arrays of nickel nanorods embedded in an anodized aluminum oxide template.
Brian Toal   +5 more
doaj   +1 more source

Active magneto-optical metalens

open access: yesOptics Express
We demonstrate a metasurface made of bismuth-substituted yttrium iron garnet (BIG) nanodisks that, in the presence of a magnetic field, functions as a polarization-sensitive metalens. Specifically, switching the handedness of the incident circularly polarized light (from right- to left-handed or vice versa) results in distinct focusing behavior.
Forouzan Habibighahfarokhi   +3 more
openaire   +3 more sources

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