Introduction to Surface Plasmon Polariton Waveguides Negative Dielectric Optical Waveguides for Nano-Optical Guiding Nanoparticle Plasmon Waveguides Surface Plasmon Polariton Gap Waveguide and Its Applications Metal Heterostructures Plasmonic Slot Waveguides Plasmonic Modulators Metal Trench Waveguides: Experiments and Analysis Fundamentals of Channel and Wedge Plasmon Polaritons Channel Plasmon Polaritons in Triangular Grooves Nanophotonic Components Utilizing Channel Plasmon Polaritons Adiabatic Concentration and Coherent Control in Nanoplasmonic Waveguides Nanoplasmonics: Components, Devices and Circuits