Results 21 to 30 of about 119,528 (342)

Mirror-Image-Induced Magnetic Modes

open access: yesACS Nano, 2012
Reflection in a mirror changes the handedness of the real world, and right-handed objects turn left-handed and vice versa (M. Gardner, The Ambidextrous Universe, Penguin Books, 1964). Also, we learn from electromagnetism textbooks that a flat metallic mirror transforms an electric charge into a virtual opposite charge. Consequently, the mirror image of
E. Xifré Pérez   +6 more
openaire   +7 more sources

Magnetic Field Screening and Mirroring in Graphene [PDF]

open access: yesPhysical Review Letters, 2009
The orbital magnetism in spatially varying magnetic fields is studied in monolayer graphene within the effective mass approximation. We find that, unlike the conventional two-dimensional electron system, graphene with small Fermi wave number k_F works as a magnetic shield where the field produced by a magnetic object placed above graphene is always ...
Koshino, Mikito   +2 more
openaire   +3 more sources

Photon Spectra of a Bragg Microresonator with Bigyrotropic Filling

open access: yesPhotonics, 2022
In this article, we have obtained the transmission spectra of a microresonator structure with Bragg mirrors, the working cavity of which is filled with a magnetically active finely layered ferrite-semiconductor structure with material parameters ...
Svetlana V. Eliseeva   +2 more
doaj   +1 more source

Modeling and evaluation of magnetic fluid deformable mirror with dual-layer actuators

open access: yesInternational Journal of Optomechatronics, 2019
In this paper, a rectangular magnetic fluid deformable mirror (MFDM) with dual-layer actuators is proposed, which is designed to improve the correction performance for full-order aberrations.
Zhu Zhang   +6 more
doaj   +1 more source

Small scale energy release driven by supergranular flows on the quiet Sun [PDF]

open access: yes, 2007
In this article we present data and modelling for the quiet Sun that strongly suggest a ubiquitous small-scale atmospheric heating mechanism that is driven solely by converging supergranular flows. A possible energy source for such events is the power
B.T. Welsch   +24 more
core   +1 more source

Single-light-source three-axis atomic magnetometer based on orthogonal and non-overlapping dual-pump beams

open access: yesResults in Physics, 2023
In this paper, we propose a three-axis atomic magnetometer (AM), in which one light beam is divided into two orthogonal spatially separated pump beams by a lateral displacement polarized beam splitter and reflector mirrors; this scheme suppresses the ...
Lin Li   +3 more
doaj   +1 more source

Enhancement of the Magneto-Optical Kerr Effect in One- Dimensional Magnetophotonic Crystals with Adjustable Spatial Configuration [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2019
We studied magnetophotonic crystals (MPCs) with introduced magneticdefect layer sandwiched between magnetic and dielectric Bragg mirrors. Thesemagnetophotonic crystals have excellent capabilities to enhance reflection and Kerrrotation simultaneously.
Tahmineh Jalali   +3 more
doaj  

Spatially selective excitation of spin dynamics in magneto-photonic crystals by spectrally tunable ultrashort laser pulses

open access: yesNanophotonics, 2022
In this work, we tackle the problem of the spatially selective optical excitation of spin dynamics in structures with multiple magnetic layers. The 120 fs circularly polarized laser pulses were used to launch magnetization precession in an all-dielectric
Sylgacheva Daria A.   +8 more
doaj   +1 more source

Extreme Ultraviolet Stokesmeter for Pulsed Magneto-Optics

open access: yesPhotonics, 2015
Several applications in material science and magnetic holography using extreme ultraviolet (EUV) radiation require the measurement of the degree and state of polarization.
Mabel Ruiz-Lopez   +3 more
doaj   +1 more source

Precision Angle Measurement Systems on the Basis of Ring Laser Gyro

open access: yesSensors, 2020
The main application of a ring laser gyroscope is navigation. It is currently the most widely used device for strapdown inertial navigation systems. However, it is also applicable for high-precision angle metrology systems.
Yuri V. Filatov   +3 more
doaj   +1 more source

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