Nanofilters for Optical Nanocircuits

Details Nanofilters for Optical Nanocircuits Nanofilters for Optical Nanocircuits

2007-10-02

arxiv.org/abs/0710.0616v1

Physics

Condensed Matter

Materials Science

34 pages, 14 figures

Scientific paper

10.1103/PhysRevB.77.144107

We theoretically and numerically study the design of optical 'lumped' nanofiltering devices in the framework of our recently proposed paradigm for optical nanocircuits. In particular, we present the design of basic filtering elements, such as low-pass, band-pass, stop-band and high-pass 'lumped' nanofilters, for use in optical nanocircuits together with more complex designs, such as multi-zero or multi-pole nanofilters, to work at THz, infrared and optical frequencies. Following the nanocircuit theory, we show how it is possible to design such complex frequency responses by simple rules, similar to RF circuit design, and we compare the frequency response of these optical nanofilters with classic filters in RF circuits. These results may provide a theoretical foundation for fabricating nanofilters in optical lumped nanocircuit devices.

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