Abstract
Theoretical studies of the optical bistability in two-dimensional nonlinear composites, where Kerr type dielectric/nonlocal metal core-shell cylinders are randomly embedded in the host medium, have been carried out. Within the quasistatic approximation, we demonstrate the tunable Fano resonances in the scattering spectra of the single core-shell cylinder based on different degrees of nonlocality in the linear case. It is found that nonlocality of the metallic shell would enhance the Fano resonance peak and the near-field strength, thus it can further boost the nonlinear response of the core-shell cylinder in both near field and far field, indicating the nonlocality-enhanced optical bistability. Furthermore, we show that nonlocality can efficiently reduce the bistable switching threshold of the nonlinear composite, and these self-tunable optical resonant scatters can be used as all-optical switches and nanomemories.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
