Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.111.133901
Title: Experimental verification of isotropic radiation from a coherent dipole source via electric-field-driven LC resonator metamaterials
Authors: Tichit, P.-H.
Burokur, S.N.
Qiu, C.-W. 
De Lustrac, A.
Issue Date: 24-Sep-2013
Source: Tichit, P.-H., Burokur, S.N., Qiu, C.-W., De Lustrac, A. (2013-09-24). Experimental verification of isotropic radiation from a coherent dipole source via electric-field-driven LC resonator metamaterials. Physical Review Letters 111 (13) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.111.133901
Abstract: It has long been conjectured that isotropic radiation by a simple coherent source is impossible due to changes in polarization. Though hypothetical, the isotropic source is usually taken as the reference for determining a radiator's gain and directivity. Here, we demonstrate both theoretically and experimentally that an isotropic radiator can be made of a simple and finite source surrounded by electric-field-driven LC resonator metamaterials designed by space manipulation. As a proof-of-concept demonstration, we show the first isotropic source with omnidirectional radiation from a dipole source (applicable to all distributed sources), which can open up several possibilities in axion electrodynamics, optical illusion, novel transformation-optic devices, wireless communication, and antenna engineering. Owing to the electric- field-driven LC resonator realization scheme, this principle can be readily applied to higher frequency regimes where magnetism is usually not present. © 2013 American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/55964
ISSN: 00319007
DOI: 10.1103/PhysRevLett.111.133901
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