Controlling Electromagnetic Fields | Science - AAAS
2006年6月23日 · To exploit electromagnetism, we use materials to control and direct the fields: a glass lens in a camera to produce an image, a metal cage to screen sensitive equipment, “blackbodies” of various forms to prevent unwanted reflections.
Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields— electric displacement field D, magnetic induction field B, and Poynting vector S—are all displaced in a …
Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields—electric displacement field D, magnetic induction field B, and Poynting vector B—are all displaced in a …
Controlling the Electromagnetic Field Confinement with Metamaterials
2016年11月25日 · We present a method of electromagnetic field confinement based on the generation of evanescent waves by means of metamaterial structures. With this method, the confinement volume can be...
Controlling electromagnetic fields - PubMed
2006年6月23日 · Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields-electric displacement field D, magnetic induction field B, and Poynting vector B-are all displaced in a consistent manner.
Control of magnetism by electric fields | Nature Nanotechnology
2015年3月5日 · This Review discusses recent advances towards electric-field control of magnetism in ferromagnetic semiconductors and metals, and in multiferroics.
Controlling electromagnetic fields at boundaries of arbitrary …
2016年8月9日 · Here, we introduce the concept of conformal boundary optics: a design theory that determines the optical response for designer input and output fields at such interfaces. Given any object, we can realize coatings to achieve exotic effects like optical illusions and anomalous diffraction behavior.
Controlling Electromagnetic Fields - SciSpace by Typeset
TL;DR: This work shows how electromagnetic fields can be redirected at will and proposes a design strategy that has relevance to exotic lens design and to the cloaking of objects from electromagnetic fields.
Several examples have been reported on the control of the radiation patterns of thermal, acoustic, seismic and electromagnetic waves, indicating that these are probably the most suitable tools for engineering the discontinuities at will.
Controlling Electromagnetic Fields in Complex Environments
This paper introduces a new method proposed in recent years for controlling electromagnetic fields. The method makes use of the power transmission efficiency between two antenna systems as the performance index to be optimized, and reduces a field synthesis problem into a circuit analysis problem.