In this paper, we present novel mechanisms for tuning and controlling the response of novel plasmonic filter using metal-insulator-metal (MIM) configuration. These mechanisms allow for full control on the transmission response from these waveguide based structures. This control can be done electrically or mechanically. The applications and advantages of these novel schemes are discussed in details. Wideband tuning range has been obtained using these schemes.

Abstract-A novel structure is proposed as an inline resonator. The resonator has low loss, compact size and good sensing characteristics. A simple analytical form to the plasmonic waveguide discontinuity, filter resonance response and cascaded filters behavior is proposed. The model is extracted from the waveguide physical parameters and provides a physical insight into the structure of the filter. This model is simple, accurate, and shows a good agreement with FDTD simulations. The ability of the model to provide a good methodology to obtain high quality filters using cascaded inline filtering is verified using FDTD. The proposed nanofilter can be used in various plasmonic applications such as sensing, biomedical diagnostics and on-chip interconnects. Using cascaded filters, a higher quality filter is achieved.

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