Schroedinger Solitons In Left-handed Sio_2-ag-sio_2and Ag-sio2-ag Plasmonic Waveguides Calculated With A Nonlinearrntransmission Line Approach

摘要

The existence of solitons in SiO_2-Ag-SiO_2 and Ag-SiO2-Ag plasmonic waveguides (PWGs) is investigated using a nonlinear transmission line approach. Both the SiO_2-Ag-SiO_2 and the Ag-SiO_2-Ag, the former in its TM even mode and the latter in its odd mode, are shown to support bright solitons as solutions to the nonlinear Schrodinger equation. The SiO_2-Ag-SiO_2 even mode has low left-handed (LH) loss but is undesirably mixed with a right-handed mode, while the Ag-SiO_2-Ag odd mode exhibits low-loss pure LH characteristics and is therefore the most suited mode for soliton propagation. Soliton PWGs may find applications in compact switching, pulse shaping, and pulse compressing devices.