Results 11 to 20 of about 446 (102)

Optically controlling the competition between spin flips and intersite spin transfer in a Heusler half-metal on sub-100-fs time scales. [PDF]

Sci Adv, 2023
The direct manipulation of spins via light may provide a path toward ultrafast energy-efficient devices. However, distinguishing the microscopic processes that can occur during ultrafast laser excitation in magnetic alloys is challenging.
Ryan SA, Johnsen PC, Elhanoty MF, Grafov A, Li N, Delin A, Markou A, Lesne E, Felser C, Eriksson O, Kapteyn HC, Grånäs O, Murnane MM.   +12 more
europepmc   +2 more sources

Nonlinear TMOKE enhancement in 1D Au/Py magnetoplasmonic crystals

Journal of Physics: Conference Series, 2021
Abstract Resonant optical properties of the magnetoplasmonic crystals, which support propagation of surface plasmon polaritons (SPPs) accompanied by magnetooptical effects, have found success in magnetic field driven control of optical radiation.
A M Romashkina, V B Novikov
exaly   +2 more sources

Magneto-optical heterostructures with second resonance of transverse magneto-optical Kerr effect [PDF]

Scientific Reports
Two conventional magneto-plasmonic (MP) structures are firstly superimposed with mirror symmetry to form a symmetric MP heterostructure. These two MP components are separated from each other by a noble metallic layer.
Amene Rezaeian, Mahmood Hosseini Farzad
doaj   +2 more sources

Enhancement of transverse Kerr effect in a BiYIG based magneto optical device with metal nanopyramid arrays [PDF]

Scientific Reports
The magneto-optical device based on a periodic array of metal nanopyramids embedded in a film of Bi:YIG coated on the surface of a silver substrate, is optimized utilizing a computational simulation technique (CST Microwave Studio).
Saeed Afrouzi, Vahid Fallahi, Reza Aghbolaghi, Hamze Ali Navid   +3 more
doaj   +2 more sources

Integrated TE optical isolator based on magneto-optical perturbation in coupled waveguides [PDF]

Scientific Reports
Photonic integrated circuits (PICs) increasingly require more advanced integrated functionalities and devices to meet the key application challenges.
Kimhong Chao, Vy Yam, Laurent Vivien, Béatrice Dagens   +3 more
doaj   +2 more sources

TMOKE enhancement in structured all-dielectric iron-garnet films with waveguide modes

Journal of Physics: Conference Series, 2020
Abstract The idea of using nanostructured all-dielectric structures to enhance magneto-optical effects instead of plasmonic ones is attracting much interest. The use of dielectric materials allows one to avoid significant energy losses that are present in metals.
Andrey A Voronov, Daria O Ignatyeva, M A Kozhaev   +2 more
exaly   +2 more sources

VIS-NIR TMOKE enhanced dielectric-metal hybrid structure for high performance dual-channel sensing

Optics Express, 2023
Magneto-plasmon sensors based on the transverse magneto-optical Kerr effect (TMOKE) have been extensively studied in recent years. In this paper, we theoretically propose a hybrid structure composed of a one-dimensional bismuth iron garnet: yttrium iron garnet (BIG: YIG) nanowire arrays and thin film stack, which is grown on an infinite thick silicon ...
Lixia Li, Xueyang Zong, Yufang Liu
exaly   +3 more sources

All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances. [PDF]

Nat Commun, 2020
Nanostructured magnetic materials provide an efficient tool for light manipulation on sub-nanosecond and sub-micron scales, and allow for the observation of the novel effects which are fundamentally impossible in smooth films. For many cases of practical
Ignatyeva DO, Karki D, Voronov AA, Kozhaev MA, Krichevsky DM, Chernov AI, Levy M, Belotelov VI.   +7 more
europepmc   +3 more sources

Enhancement of transverse magneto-optical Kerr effect based on surface plasmon and its application in sensing

Results in Physics, 2023
In recent years, the combination of magnetic and plasma properties of nanostructures has become a hot research topic. However, most such studies focuse on prism-based sandwich structures, which not only hinders device miniaturization but also has weak ...
Lixia Li, Fugui Lei, Xueyang Zong, Penglei Li, Yufang Liu   +4 more
doaj   +1 more source

Hybrid Plasmonic Modes for Enhanced Refractive Index Sensing

Advanced Sensor Research, Volume 2, Issue 12, December 2023., 2023
A critical review of spectral line shapes of exotic hybrid plasmonic modes that arise in strongly coupled metallic nanodimers is presented along with assessment of their potentials for enhanced refractive index sensing. The state of the art in nanodimer fabrication with precisely controlled particle sizes and interparticle sepations is briefly ...
Bereket Dalga Dana, Ji Boyu, Jingquan Lin, Longnan Li, Alemayehu Nana Koya, Wei Li   +5 more
wiley   +1 more source