Fig. 1. (a) Schematic of all-optical switch based on surface plasmonic demultiplexer; (b) transmittance spectra of output port under the condition of without pump light; (c) magnetic field distribution at λ1=1174 nm; (D) magnetic field distribution at λ2=1288 nm

Fig. 2. (a)-(e) Transmittance spectra of port 1 and port 2 with different structure parameters under the condition of without pump light; (f) transmittance spectra of port 2 under the conditions of with and without pump light

Fig. 3. (a) Transmittance spectra without pump light; (b) magnetic field distribution without pump light; (c) transmittance spectra with pump light; (d) magnetic field distribution with pump light

Fig. 4. (a) Transmittance of signal light at port 1 with increasing and decreasing intensity of pump light; (b) transmittance of signal light at port 2 with increasing and decreasing intensity of pump light; (c) time response of signal light switching; (d) time response from 0.3 ps to 0.7 ps