A tunable double negative device consisting of a plasma array and a negative-permeability metamaterial
Abstract
Extraordinary wave transmission is demonstrated through a double-negative composite comprised of a negative-permeability array of double split ring resonators and a negative-permittivity array of plasma discharge tubes at microwave frequencies. A transmission peak emerges in a double-negative band and controlling the electron density inside the plasma tubes dynamically regulates the transmission properties. By performing experiments and theoretical calculations, we verify that the composite permits wave propagation with negative permeability and controllable permittivity, which indicates that a tunable negative-refractive-index device is achieved.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 01, 2020
- Source ID
- 10.1063/1.5112077
Entities
People
- Akinori Iwai
- Benjamin Wang
- Fabio Righetti
- Mark Cappelli
- Osamu Sakai
Organizations
- Air Force Office of Scientific Research
- Japan Society for the Promotion of Science
- Kyoto University
- Stanford University
- University of Shiga Prefecture