Active negative-index metamaterial powered by an electron beam
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An active negative index metamaterial that derives its gain from an electron beam is introduced. The metamaterial consists of a stack of equidistant parallel metal plates perforated by a periodic array of holes shaped as complementary split-ring resonators. It is shown that this structure supports a negative-index transverse magnetic electromagnetic mode that can resonantly interact with a relativistic electron beam. Such a metamaterial can be used as a coherent radiation source or a particle accelerator. © 2012 American Physical Society.
Published Version (Please cite this version)10.1103/PhysRevB.86.085132
Publication InfoAlù, A; Shapiro, MA; Shvets, G; Temkin, RJ; Trendafilov, S; & Urzhumov, Yaroslav A (2012). Active negative-index metamaterial powered by an electron beam. Physical Review B - Condensed Matter and Materials Physics, 86(8). pp. 085132. 10.1103/PhysRevB.86.085132. Retrieved from https://hdl.handle.net/10161/7572.
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Adjunct Assistant Professor in the Department of Electrical and Computer Engineering
<!--[if gte mso 9]> <![endif]--> <!--[if gte mso 9]> <![endif]-->Dr. Urzhumov is Adjunct Assistant Professor of ECE at Duke University, and also a Technologist at the Metamaterials Commercialization Center of Intellectual Ventures. Previously a research faculty at Duke, he works on applied and theoretical aspects of metama