Da Huang

TL;DR: In this paper, the authors present a method and a system configured to transfer energy wirelessly, comprising: a source configured to generate evanescent waves, in response to receiving the energy, on at least part of a surface of the source; a sink configured to receive the energy from the source via a coupling of the evanescence waves; and a load configured to receive energy from a sink, wherein the load and the sink are configured to move along the surface of a source such that the at least a part of evanescales are coupled between the source and

TL;DR: A general theory of effective media to set up the relationship between the particle responses and the macroscopic system behaviors for artificial metamaterials composed of periodic resonant structures and proposes a more advanced form of the fitting formulas for the effective electromagnetic parameters of metamMaterials.

TL;DR: The impact of a magnetic metamaterial (MM) superlens on long-range near-field WPT is demonstrated, quantitatively confirming in simulation and measurement the conditions under which thesuperlens can enhance power transfer efficiency compared to the lens-less free-space system.

TL;DR: This Letter experimentally demonstrates the nonlinear-optical mirror effect in a bulk negative-index nonlinear metamaterial, along with two other novel phase-matching configurations, utilizing periodic poling to switch between the three phase- matching domains.

TL;DR: In this paper, the authors derived the expressions for the effective nonlinear susceptibilities of a metacrystal formed from resonant elements that couple strongly to the magnetic field and experimentally illustrate the accuracy and validity of their theoretical framework.