Anomalous Diffraction in Cold Magnetized Plasma.
| Autor: | Abelson Z; Sackler School of Physics and Astronomy, Faculty of Exact Sciences, Tel-Aviv University, Tel Aviv 6997801, Israel., Gad R; Department of Physics, Technion-Israel Institute of Technology, Haifa 3200003, Israel., Bar-Ad S; Sackler School of Physics and Astronomy, Faculty of Exact Sciences, Tel-Aviv University, Tel Aviv 6997801, Israel., Fisher A; Department of Physics, Technion-Israel Institute of Technology, Haifa 3200003, Israel. |
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| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2015 Oct 02; Vol. 115 (14), pp. 143901. Date of Electronic Publication: 2015 Sep 28. |
| DOI: | 10.1103/PhysRevLett.115.143901 |
| Abstrakt: | Cold magnetized plasma possesses an anisotropic permittivity tensor with a unique dispersion relation that for adequate electron density and magnetic field results in anomalous diffraction of a right-hand circularly polarized beam. In this work, we demonstrate experimentally anomalous diffraction of a microwave beam in plasma. Additionally, decreasing the electron density enables observation of the transition of the material from a hyperbolic to a standard material. Manipulation of the control parameters will enable plasma to serve as a reconfigurable metamaterial-like medium. |
| Databáze: | MEDLINE |
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