Broadband sharp 90-degree bends and T-splitters in plasmonic coaxial waveguides.
basic_science · Level V
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- Record sourced from PubMed, PMID 23981038.
- Also identified by DOI 10.1021/nl402335x.
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Abstract
We demonstrate numerically that sharp 90° bends and T-splitters can be designed in plasmonic coaxial waveguides at deep-subwavelength scale to operate without reflection and radiation over a broad range of wavelengths, including the telecommunication wavelength of 1.55 μm. We explain the principles of the operation using a transmission line model of the waveguide in the quasi-static limit. The compact bends and T-splitters open up a new avenue for the design of densely integrated optical circuits with minimal crosstalk.
Medical subject headings
- Optical Devices
- Optics and Photonics
- Surface Plasmon Resonance