In:
Chinese Physics B, IOP Publishing, Vol. 31, No. 1 ( 2022-01-01), p. 014101-
Abstract:
A hybrid metamaterial with the integration of molybdenum disulfide (MoS 2 ) overlayer is proposed to manipulate the terahertz (THz) wave. The simulated results indicate that the introduction of MoS 2 layer could significantly modify the resonant responses with large resonance red-shift and bandwidth broadening due to the depolarization field effect, especially for the structure on the small permitivity substrate. Additionally, the wide-band modulator in off-resonant region and a switch effect at resonance can be achieved by varying the conductivity of MoS 2 layer. Further theoretical calculations based on the Lorentz coupling model are consistent with the simulated results, explicating the response behaviors originate from the coupling between MoS 2 overlayer and the metastructure. Our results could provide a possibility for active control THz modulator and switchable device based on the MoS 2 overlayer and advance the understanding of the coupling mechanism in hybrid structures.
Type of Medium:
Online Resource
ISSN:
1674-1056
DOI:
10.1088/1674-1056/ac1fde
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2022
detail.hit.zdb_id:
2412147-2
Permalink