Results 21 to 30 of about 269 (163)

High‐Performance Broadband Faraday Rotation Spectroscopy of 2D Materials and Thin Magnetic Films

Small Methods, Volume 6, Issue 11, November 18, 2022., 2022
A micrometer‐scale, fast aquisition speed, Faraday rotation spectroscopy technique is demonstrated. It is based on charge‐coupled device (CCD) detection, works over a broadband wavelength range, and offers a high sensitivity. Measurements of the exciton g‐factor in atomically thin semiconductors and hysteresis loops of thin magnetic films are presented
Benjamin Carey, Nils Kolja Wessling, Paul Steeger, Christoph Klusmann, Robert Schneider, Mario Fix, Robert Schmidt, Manfred Albrecht, Steffen Michaelis de Vasconcellos, Rudolf Bratschitsch, Ashish Arora   +10 more
wiley   +1 more source

ON THE VERDET CONSTANT AND FARADAY ROTATION FOR GRAPHENE-LIKE MATERIALS [PDF]

Reviews in Mathematical Physics, 2013
We present a rigorous and rather self-contained analysis of the Verdet constant in graphene-like materials. We apply the gauge-invariant magnetic perturbation theory to a nearest-neighbor tight-binding model and obtain a relatively simple and exactly computable formula for the Verdet constant, at all temperatures and all frequencies of sufficiently ...
Brynildsen, Mikkel Haggren, Cornean, Horia; id_orcid 0000-0003-2700-8785   +1 more
openaire   +4 more sources

Toward the Light‐Operated Superconducting Devices: Circularly Polarized Radiation Manipulates the Current‐Carrying States in Superconducting Rings

Advanced Quantum Technologies, Volume 5, Issue 10, October 2022., 2022
The capability to carry electric current without dissipation and change quantum state at the picosecond timescales make superconductors promising materials for computational electronics. In this paper it is demonstrated that circularly polarized electromagnetic wave radiating a small superconducting ring can solely switch between the quantum states ...
Mihail D. Croitoru, Sergey V. Mironov, Brahim Lounis, Alexander I. Buzdin   +3 more
wiley   +1 more source

The COMIX polarimeter: a compact device for XUV polarization analysis

Journal of Synchrotron Radiation, Volume 29, Issue 4, Page 969-977, July 2022., 2022
The COMIX instrument, a novel compact polarimeter for XUV light based on conical mirrors, has been tested and characterized. Through a time‐resolved experiment on a ferrimagnetic thin film, it is shown that the device has the potential to become a versatile tool for research in femtomagnetism.We report on the characterization of a novel extreme ...
Matteo Pancaldi, Christian Strüber, Bertram Friedrich, Emanuele Pedersoli, Dario De Angelis, Ivaylo P. Nikolov, Michele Manfredda, Laura Foglia, Sergiy Yulin, Carlo Spezzani, Maurizio Sacchi, Stefan Eisebitt, Clemens von Korff Schmising, Flavio Capotondi   +13 more
wiley   +1 more source

Simulation analysis of temperature effects on all-fiber optic current sensor

Energy Reports, 2021
Temperature is the main factor restricting the application of all-fiber current sensors. To comprehensively analyze temperature influences, the influences of temperature on Verdet constant, birefringence, and phase delay of the quarter-wave plate are ...
Jianhua Wu, Xiaofeng Zhang, Liang Chen, Benxiang Wu   +3 more
doaj   +1 more source

Research of Magnetic Shielding on the Closing Gap of Optical Fiber Current Sensor

Journal of Sensors, Volume 2022, Issue 1, 2022., 2022
Reflective optical fiber current sensors have been widely used in electric power and metallurgy. However, the closing gaps between the λ/4 wave plate and the reflector leads to a strong background current when they are used in strong magnetic fields.
Chun Li, Shuihua Zhang, Yi Meng, Jun Tie, Rentao Zhao, Qingyu Zeng, Hao Xiao, Dongwei Liu, Christos Riziotis   +8 more
wiley   +1 more source

Fabrication and performance evaluation of novel transparent ceramics RE:Tb3Ga5O12 (RE = Pr, Tm, Dy) toward magneto-optical application

Journal of Advanced Ceramics, 2021
Transparent ceramics are at the heart of modern magneto-optical materials providing promising opportunities for Faraday isolators. 1.0 at% RE:Tb3Ga5O12 (rare earth (RE) = Pr, Tm, Dy) transparent ceramics were successfully prepared by air sintering and ...
Xiaoying Li, Ilya L. Snetkov, Aleksey Yakovlev, Qiang Liu, Xin Liu, Ziyu Liu, Penghui Chen, Danyang Zhu, Lexiang Wu, Zhaoxiang Yang, Tengfei Xie, Haohong Chen, Oleg Palashov, Jiang Li   +13 more
doaj   +1 more source

Faraday Angle and Accuracy Measurement of Magneto-Optic Current Transmission Based on New Telluride Glass

IEEE Photonics Journal, 2022
Two robust temperature-insensitive magneto-optical current sensor prototypes, based on double polarimetric processing schemes and single light way methods, were constructed using light reflection and light transition, respectively.
ShiYu Yin, ZhiZhi Zhang, Yong Li, Hao Wang, Lin Liu, TianJiao Zhou, ShiFeng Wang   +6 more
doaj   +1 more source

Influence of Imperfect Faraday Rotation Mirror on All‐Fiber Optic Current Sensor

Journal of Sensors, Volume 2022, Issue 1, 2022., 2022
The effects of the Faraday rotation mirror on the all‐fiber optic current sensor (AFOCS) are studied in this paper. The reflectivity degradation of FRM with the long‐term operation, the misalignment of the optical axis between FRM and the sensing fiber, and the influence of temperature fluctuation on FRM are modeled and simulated in this paper.
Jianhua Wu, Xiaofeng Zhang, Liang Chen, Carlos Marques   +3 more
wiley   +1 more source

Spiraling light: from donut modes to a Magnus effect analogy

Nanophotonics, Volume 11, Issue 4, Page 633-644, January 2022., 2022
Abstract The insight that optical vortex beams carry orbital angular momentum (OAM), which emerged in Leiden about 30 years ago, has since led to an ever expanding range of applications and follow‐up studies. This paper starts with a short personal account of how these concepts arose.
Robert J. C. Spreeuw
wiley   +1 more source