Fano resonance in nonlinear subwavelength plasmonic structure for multispectral optical switching and bandwidth tuning

摘要

Fano resonance aided by Kerr nonlinearity is depicted in a subwavelength plasmonic waveguide coupled cavity structure. Induced Fano dips at higher intensities results in simultaneous switching at multiple wavelengths. For set of specific intensities, spectral width tuning at a fixed wavelength is also achieved.