A graphene-based magnetoplasmonic metasurface for actively tunable transmission and polarization rotation at terahertz frequencies
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Tohoku Univ., Sendai (Japan)
The rise of terahertz (THz)-based technologies has prompted intense interest in methods for manipulating the properties of THz radiation. In this Letter, we experimentally demonstrate a graphene micro-ribbon-based metasurface that allows us to tailor and dynamically tune the transmission and polarization rotation spectra of impinging THz pulses. This is achieved by controlling the geometry of the ribbon pattern and the applied DC magnetic field, both of which strongly influence the magnetoplasmonic response of the metasurface. The properties of the metasurface can be accurately modeled using an effective medium approach that considers the capacitive interaction of the ribbons resulting from the THz electric field. Furthermore, our results highlight the promise of graphene-based THz devices that leverage the strongly enhanced light–matter interactions resulting from patterning.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1829637
- Alternate ID(s):
- OSTI ID: 1632034
- Report Number(s):
- LA-UR-19-29951; TRN: US2216837
- Journal Information:
- Applied Physics Letters, Vol. 116, Issue 22; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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