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Magneto-optical effects (MOE), interfacing the fundamental interplay between magnetism and light, have served as a powerful probe for magnetic order, band topology, and valley index. Here, based on multiferroic and topological bilayer…

Mesoscale and Nanoscale Physics · Physics 2024-03-26 Jiaqi Feng , Xiaodong Zhou , Meiling Xu , Jingming Shi , Yinwei Li

Using density functional theory calculations, we have found an enhanced magneto-optical Kerr effect in Fe/insulator interfaces. The results of our study indicate that interfacial Fe atoms in the Fe films have a low-dimensional nature, which…

Materials Science · Physics 2017-12-20 Bo Gu , Saburo Takahashi , Sadamichi Maekawa

Perpendicularly magnetized spin injector with high Curie temperature is a prerequisite for developing spin optoelectronic devices on 2D materials working at room temperature (RT) with zero applied magnetic field. Here, we report the growth…

Dielectric Mie nanoresonators showing strong light-matter interaction at the nanoscale may enable new functionality in photonic devices. Recently, strong magneto-optical effects have been observed in magneto-optical nanophotonic devices due…

The design and performance of a wide bandwidth linear polarization modulator based on the Faraday effect is described. Faraday Rotation Modulators (FRMs) are solid-state polarization switches that are capable of modulation up to ~10 kHz.…

We report the development of new terahertz techniques for rapidly measuring the complex Faraday angle in systems with broken time-reversal symmetry using the cyclotron resonance of a GaAs two-dimensional electron gas in a magnetic field as…

Materials Science · Physics 2015-06-03 D. K. George , A. V. Stier , C. T. Ellis , B. D. McCombe , J. Černe , A. G. Markelz

Magnetic and spintronic media have offered fundamental scientific subjects and technological applications. Magneto-optic Kerr effect (MOKE) microscopy provides the most accessible platform to study the dynamics of spins, magnetic…

Rich dielectric properties in atomic transition metal dichalcogenides (TMDs) enhance light-matter interactions and contribute to a variety of optical phenomena. The direct transfer of TMDs onto photonic crystals facilitates optical field…

Optics · Physics 2025-01-15 Zhonglin Li , Yingying Wang , Xianglin Li , Bo Zhong , Wenjun Liu , Zexiang Shen

The magneto-optical Kerr effect (MOKE) is often assumed to be proportional to the magnetisation of a magnetically ordered metallic sample; in metallic ferrimagnets with chemically distinct sublattices, such as rare-earth transition-metal…

We present a microscopic calculation of the inverse Faraday effect in metals. We derive a static local magnetic moment induced on the application of high-frequency light, using the Eilenberger formulation of quasiclassical theory. We…

Superconductivity · Physics 2024-09-13 Priya Sharma , Alexander V. Balatsky

We discuss the effects of an isolated gravitational lens on the rotation of the plane of polarization of linearly polarized light rays, the so called gravitational Faraday rotation, in metric theories of gravity. By applying the thin lens…

Astrophysics · Physics 2009-11-10 M. Sereno

Lithium Niobate (LN) is a ferroelectric material with exceptional electrical characteristics, including high piezoelectricity, high Pockels effect, etc. These properties make it a promising platform for numerous fields such as high-speed…

Materials Science · Physics 2024-08-20 Yalong Yu , Bo Xiong , Siqi Wu , Yekai Ren , Nuo Chen , Qingjiao Mi , Kangping Lou , Rui Wang , Tao Chu

The magnetic circular dichroism and the Faraday rotation are the fundamental phenomena of great practical importance arising from the breaking of the time reversal symmetry by a magnetic field. In most materials the strength and the sign of…

In recent times, spatial light modulators have become a common tool in optics laboratories as well as industrial environment to shape the spatial structure of a beam. Although these devices are often easy to use, they usually come at a high…

Physics Education · Physics 2021-01-26 Sergei Panarin , Jonas Müller , Shashi Prabhakar , Robert Fickler

Radio synchrotron emission, its polarization and its Faraday rotation are powerful tools to study the strength and structure of interstellar magnetic fields. In the Milky Way, Faraday rotation of the polarized emission from pulsars and…

Instrumentation and Methods for Astrophysics · Physics 2010-08-24 R. Beck

Emerging two-dimensional (2D) magnetic semiconductors represent transformative platforms to explore magneto-optics and opto-spintronic applications. Though 2D opto-spintronics has attracted tremendous research efforts in spin-dependent…

Experimentally observed ultrafast all-optical magnetization reversal in ferrimagnetic metals and heterostructures based on antiferromagnetically coupled ferromagnetic $d-$ and $f-$metallic layers relies on intricate energy and angular…

Strongly Correlated Electrons · Physics 2016-03-02 Alexandra Kalashnikova , Veniamin Kozub

The quest for a spin-polarized organic light emitting diode (spin-OLED) is a common goal in the emerging fields of molecular electronics and spintronics. In this device two ferromagnetic electrodes are used to enhance the…

Mesoscale and Nanoscale Physics · Physics 2019-04-15 J. P. Prieto-Ruiz , S. G. Miralles , H. Prima-García , A. Løpez-Munoz , A. Riminucci , P. Graziosi , M. Cinchetti , V. A. Dediu , E. Coronado

We describe a fast closed-loop optimization wavefront shaping system able to focus light through dynamic scattering media. A MEMS-based spatial light modulator (SLM), a fast photodetector and FPGA electronics are combined to implement a…

Instrumentation and Detectors · Physics 2018-02-14 Baptiste Blochet , Laurent Bourdieu , Sylvain Gigan

Deformable mirrors are increasingly used in astronomy. However, they still are limited in stroke for active correction of high amplitude optical aberrations. Magnetic Liquid deformable mirrors (MLDMs) are a new technology that has…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 E. F. Borra
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