Figure 5
From: Dynamically tunable switch and filter in single slot cavity structure

(a) The transmission spectra at two different pumping intensities with L = 600 nm, w = 450 nm. (b) The magnetic fields at wavelengths of 999 nm and 1253 nm. The ‘on’ state without the pumping light and the ‘off’ state with the pumping light. The dielectric is Kerr nonlinear material.