Results 71 to 80 of about 73,315 (305)

Quasi-Phase-Matched Faraday Rotation in Semiconductor Waveguides With a Magnetooptic Cladding for Monolithically Integrated Optical Isolators

IEEE Photonics Journal, 2013
Strategies are developed for obtaining nonreciprocal polarization mode conversion, also known as Faraday rotation, in waveguides in a format consistent with silicon-on-insulator or III-V semiconductor photonic integrated circuits.
David C. Hutchings, Barry M. Holmes, Cui Zhang, Prabesh Dulal, Andrew D. Block, Sang-Yeob Sung, Nicholas C. A. Seaton, Bethanie J. H. Stadler   +7 more
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Faraday effect : a field theoretical point of view

, 1999
We analyze the structure of the vacuum polarization tensor in the presence of a background electromagnetic field in a medium. We use various discrete symmetries and crossing symmetry to constrain the form factors obtained for the most general case.
A. Loeb, A. Rai Choudhuri, A.M. Portis, Avijit K. Ganguly, H. Pérez Rojas, H.A. Weldon, J. Schwinger, J.F. Nieves, J.F. Nieves, L.F. Urrutia, M. Giovannini, M. Giovannini, M.B. Kislinger, M.B. Kislinger, M.J. Rees, P. Elmfors, P.P. Kronberg, Palash B. Pal, Sushan Konar, W. Dittrich, W.Y. Tsai, W.Y. Tsai   +21 more
core   +1 more source

B polarization of the CMB from Faraday rotation [PDF]

, 2004
We study the effect of Faraday rotation due to a homogeneous magnetic field on the polarization of the cosmic microwave background (CMB). Scalar fluctuations give rise only to parity-even E-type polarization of the CMB.
A. A. Ruzmaikin, B. G. Keating, Claudia Scóccola, Diego Harari, F. Hoyle, J. Tauber, J. H. Piddington, K. R. S. Balaji, S. Chandrasekar, Silvia Mollerach   +9 more
core   +1 more source

Microstructure‐Resolved Modeling to Predicting and Regulating Lithium Plating‐Stripping Dynamics on Graphite Electrodes

Advanced Science, EarlyView.
ABSTRACT The lithium plating reaction in graphite electrodes acts as a root cause for the accelerated degradation and the internal short circuits in lithium‐ion batteries. Here, an electrochemical model based on multi‐scale microstructural images was established to identify lithium plating‐stripping processes, thereby supporting the predictive outcomes
Heng Huang, Yang Li, Xinyu Liu, Zhifu Zhou, Wei‐Tao Wu, Lei Wei, Chengzhi Hu, Linsong Gao, Yubai Li, Yongchen Song   +9 more
wiley   +1 more source

The depolarisation properties of powerful extragalactic radio sources as a function of cosmic epoch

, 2005
We use the observed polarisation properties of a sample of 26 powerful radio galaxies and radio-loud quasars to constrain the conditions in the Faraday screens local to the sources.
Akujor, Athreya, Barthel, Best, Blundell, Bridle, Burn, C. R. Kaiser, Carilli, Deeming, Eales, Efstathiou, Fanaroff, Garrington, Gilbert, Goodlet, Hales, Harvanek, Hill, Ishwara-Chandra, Ishwara-Chandra, J. A. Goodlet, Kaiser, Kaiser, Kaiser, Kapahi, Kronberg, Lacy, Laing, Leahy, Leahy, Liu, Liu, Longair, Macklin, McCarthy, Morris, Neeser, Onuora, Pedelty, Pentericci, Pooley, Riley, Singal, Singal, Strom, Strom, Tribble, Véron, Wold   +49 more
core   +1 more source

Grain Boundary‐Driven Lattice Dynamics in a Solid‐State Li‐Ion Conductor

Advanced Science, EarlyView.
Grain boundaries in Li3OCl${\rm Li}_3{\rm OCl}$ are shown to significantly alter its lattice dynamics and induce Li‐ion vibrational hardening and anion softening. These changes hinder ion transport while promoting electronic conductivity and instability.
Jack M. Hemingway, James A. Quirk, Erli Lu, James A. Dawson   +3 more
wiley   +1 more source

Coherent Perfect Rotation

, 2012
Two classes of conservative, linear, optical rotary effects (optical activity and Faraday rotation) are distinguished by their behavior under time reversal.
Andrews, James H., Crescimanno, Michael, Dawson, Nathan J.   +2 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Monitoring Redox Pathways and Performance Limitations in Lithium‐Sulfur Batteries Using In Situ 7/6Li and 33S NMR Spectroscopies

Angewandte Chemie, EarlyView.
Lithium‐sulfur (Li‐S) batteries contain various NMR‐active nuclear isotopes, including 7Li, 6Li and 33S, which are sensitive to the different chemical reactions that occur during battery cycling. Herein, we use a combination of lithium and sulfur operando NMR spectroscopy to provide new insights at the molecular level, fundamental understanding being ...
Jana B. Fritzke, Sunita Dey, Christopher A. O’ Keefe, Jeongjae Lee, Kazuhiro Kamiguchi, Daisuke Mori, Yuri Nakayama, Clare P. Grey   +7 more
wiley   +2 more sources