Abstract

A coupled structure of center-symmetric orthogonal nano-antenna arrays on fluorine-doped tin oxide (FTO) is designed to enhance the nonlinear response by the strong coupling. Further, we study the roles of structural and material parameters in determining the linear and nonlinear optical response of antenna-FTO metasurface. This structure shows broadband spectrum (∼900 nm) and large nonlinearity with nonlinear refractive index n 2 of 1.02 cm2/GW, which is about 400 times higher than that of bare FTO film. The results provide a promising platform for the realization of ultracompact and large nonlinear optical devices.

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 call

Disclaimer: 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.