Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial Resonators
We computationally and experimentally investigate the use of metamaterial resonators as bandpass filters and other components that enable control of guided surface electromagnetic waves. The guided surface electromagnetic wave propagates on a planar Goubau line, launched via a coplanar waveguide cou...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2011-12-01
|
| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.1.021016 |
| _version_ | 1818956664428036096 |
|---|---|
| author | W.-C. Chen J. J. Mock D. R. Smith T. Akalin W. J. Padilla |
| author_facet | W.-C. Chen J. J. Mock D. R. Smith T. Akalin W. J. Padilla |
| author_sort | W.-C. Chen |
| collection | DOAJ |
| description | We computationally and experimentally investigate the use of metamaterial resonators as bandpass filters and other components that enable control of guided surface electromagnetic waves. The guided surface electromagnetic wave propagates on a planar Goubau line, launched via a coplanar waveguide coupler with 50Ω impedance. Experimental samples targeted for either microwave or terahertz frequencies are measured and shown to be in excellent agreement with simulations. Metamaterial elements are designed to absorb energy only of the planar Goubau line and yield narrow-band resonances with relatively high quality factors. Two independent configurations of coupled metamaterial elements are demonstrated that modify the otherwise flat transmission spectrum of the planar Goubau line. By physically shunting the capacitive gaps of the coupled metamaterial elements, we demonstrate the potential for a large dynamic range in transmissivity, suggesting the use of this configuration for high-bandwidth terahertz communications. |
| first_indexed | 2024-12-20T10:57:33Z |
| format | Article |
| id | doaj.art-cd1ced8bda0641cfa9771ae82a35731d |
| institution | Directory Open Access Journal |
| issn | 2160-3308 |
| language | English |
| last_indexed | 2024-12-20T10:57:33Z |
| publishDate | 2011-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review X |
| spelling | doaj.art-cd1ced8bda0641cfa9771ae82a35731d2022-12-21T19:43:07ZengAmerican Physical SocietyPhysical Review X2160-33082011-12-011202101610.1103/PhysRevX.1.021016Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial ResonatorsW.-C. ChenJ. J. MockD. R. SmithT. AkalinW. J. PadillaWe computationally and experimentally investigate the use of metamaterial resonators as bandpass filters and other components that enable control of guided surface electromagnetic waves. The guided surface electromagnetic wave propagates on a planar Goubau line, launched via a coplanar waveguide coupler with 50Ω impedance. Experimental samples targeted for either microwave or terahertz frequencies are measured and shown to be in excellent agreement with simulations. Metamaterial elements are designed to absorb energy only of the planar Goubau line and yield narrow-band resonances with relatively high quality factors. Two independent configurations of coupled metamaterial elements are demonstrated that modify the otherwise flat transmission spectrum of the planar Goubau line. By physically shunting the capacitive gaps of the coupled metamaterial elements, we demonstrate the potential for a large dynamic range in transmissivity, suggesting the use of this configuration for high-bandwidth terahertz communications.http://doi.org/10.1103/PhysRevX.1.021016 |
| spellingShingle | W.-C. Chen J. J. Mock D. R. Smith T. Akalin W. J. Padilla Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial Resonators Physical Review X |
| title | Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial Resonators |
| title_full | Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial Resonators |
| title_fullStr | Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial Resonators |
| title_full_unstemmed | Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial Resonators |
| title_short | Controlling Gigahertz and Terahertz Surface Electromagnetic Waves with Metamaterial Resonators |
| title_sort | controlling gigahertz and terahertz surface electromagnetic waves with metamaterial resonators |
| url | http://doi.org/10.1103/PhysRevX.1.021016 |
| work_keys_str_mv | AT wcchen controllinggigahertzandterahertzsurfaceelectromagneticwaveswithmetamaterialresonators AT jjmock controllinggigahertzandterahertzsurfaceelectromagneticwaveswithmetamaterialresonators AT drsmith controllinggigahertzandterahertzsurfaceelectromagneticwaveswithmetamaterialresonators AT takalin controllinggigahertzandterahertzsurfaceelectromagneticwaveswithmetamaterialresonators AT wjpadilla controllinggigahertzandterahertzsurfaceelectromagneticwaveswithmetamaterialresonators |