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Input Impedance, Nanocircuit Loading, and Radiation Tuning of Optical Nanoantennas
Andrea Alu, Nader Engheta
Here we explore the radiation features of optical nanoantennas, analyzing the concepts of input impedance, optical radiation resistance, impedance matching and loading of plasmonic…
Nanofilters for Optical Nanocircuits
Andrea Alu, Michael Young, Nader Engheta
We theoretically and numerically study the design of optical 'lumped' nanofiltering devices in the framework of our recently proposed paradigm for optical nanocircuits. In particul…
Plasmonic Resonant Optical Nanoswitch
Andrea Alu, Nader Engheta
We examine here the anomalous optical response of a nanosphere composed of two conjoined hemispheres of different materials, one of them being plasmonic. At the internal resonance,…
Parallel, Series, and Intermediate Interconnections of Optical Nanocircuit Elements Part 2: Nanocircuit and Physical Interpretation
Andrea Alu, Alessandro Salandrino, Nader Engheta
Applying the analytical closed-form solutions of the 'quasi-static' potential distribution around two conjoined resonant half-cylinders with different permittivities, reported in t…
Parallel, Series, and Intermediate Interconnections of Optical Nanocircuit Elements Part 1: Analytical Solution
Alessandro Salandrino, Andrea Alu, Nader Engheta
Following our recent development of the paradigm for extending the classic concepts of circuit elements to the infrared and optical frequencies [N. Engheta, A. Salandrino, A. Alu,…
Optical 'Shorting Wires'
Andrea Alu, Nader Engheta
Connecting lumped circuit elements in a conventional circuit is usually accomplished by conducting wires that act as conduits for the conduction currents with negligible potential…
Coupling of Optical Lumped Nanocircuit Elements and Effects of Substrates
Andrea Alu, Alessandro Salandrino, Nader Engheta
We present here a model for the coupling among small nanoparticles excited by an optical electric field in the framework of our optical lumped nanocircuit theory [N. Engheta, A. Sa…
Nanoinsulators and nanoconnectors for optical nanocircuits
Mario G. Silveirinha, Andrea Alu, Jingjing Li +1
Following our recent idea of using plasmonic and non-plasmonic nanoparticles as nanoinductors and nanocapacitors in the infrared and optical domains [N. Engheta, A. Salandrino, and…