Bistability of optical harmonic generation in monolayer graphene plasmonics.
Opt Lett
; 46(5): 1029-1032, 2021 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-33649649
ABSTRACT
We report the bistability of second- and third-harmonic generation in monolayer graphene plasmonics supported by graphene nanoribbon arrays. The nonlinear optical bistability of harmonic generation at the ultra-low threshold intensity â¼100kW/cm2, along with the traditional linear optical bistability of transmittance, is observed due to the different local fundamental fields at the lower and higher state when the Kerr effect of graphene is considered. Importantly, the working fundamental wavelength can be tuned by the Fermi level of graphene and geometrical structure, which leads to the linear and nonlinear optical bistability available in a broadband for potential applications in advanced all-optical devices.
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MEDLINE
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En
Ano de publicação:
2021
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Article