Results 21 to 30 of about 238 (199)

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

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

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

External Field Response and Applications of Metal Coated Hemispherical Janus Particles

open access: yesApplied Sciences, 2018
Hemispherical Janus particles that were coated with silver or nickel on the equatorial plane of hemispherical polymer microparticles were prepared and dispersed in water and the responses to AC electric and stationary magnetic fields applied were ...
So Aizawa, Keisuke Seto, Eiji Tokunaga
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

A superposed epoch analysis of auroral evolution during substorm growth, onset and recovery: open magnetic flux control of substorm intensity [PDF]

open access: yesAnnales Geophysicae, 2009
We perform two superposed epoch analyses of the auroral evolution during substorms using the FUV instrument on the Imager for Magnetopause-to-Aurora Global Explorer (IMAGE) spacecraft. The larger of the two studies includes nearly 2000 substorms.
S. E. Milan   +8 more
doaj   +1 more source

A Review of Mechanical Fine-Pointing Actuators for Free-Space Optical Communication

open access: yesAerospace, 2023
This paper presents a state-of-the-art overview of fine beam steering mechanisms for free-space optical communication on satellites. Precise beam pointing is a critical task for the successful operation of free-space optical communication systems.
Martynas Milaševičius   +1 more
doaj   +1 more source

The COMIX polarimeter: a compact device for XUV polarization analysis

open access: yesJournal of Synchrotron Radiation, 2022
We report on the characterization of a novel extreme-ultraviolet polarimeter based on conical mirrors to simultaneously detect all the components of the electric field vector for extreme-ultraviolet radiation in the 45–90 eV energy range.
Matteo Pancaldi   +13 more
doaj   +1 more source

Optical magnetic mirrors without metals

open access: yesOptica, 2014
The reflection of an optical wave from a metal, arising from strong interactions between the optical electric field and the free carriers of the metal, is accompanied by a phase reversal of the reflected electric field. A far less common route to achieve high reflectivity exploits strong interactions between the material and the optical magnetic field ...
Liu, Sheng   +11 more
openaire   +3 more sources

Simulation and experimental investigation on the wavefront correction performance of a dual magnetic connection deformable mirror under high-power laser irradiation

open access: yesFrontiers in Physics, 2023
Deformable mirrors (DMs) are widely used in high-power laser systems to improve the output beam quality. However, under high-power laser irradiation, the heat accumulates on the DM mirror surface and results in high-power laser induced distortions (LID),
Yamin Zheng   +11 more
doaj   +1 more source

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