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Analysis and modeling of Fano resonances using equivalent circuit elements
- Source :
- Scientific Reports
- Publication Year :
- 2016
- Publisher :
- Nature Publishing Group, 2016.
-
Abstract
- Fano resonance presents an asymmetric line shape formed by an interference of a continuum coupled with a discrete autoionized state. In this paper, we show several simple circuits for Fano resonances from the stable-input impedance mechanism, where the elements consisting of inductors and capacitors are formulated for various resonant modes and the resistor represents the damping of the oscillators. By tuning the pole-zero of the input impedance, a simple circuit with only three passive components e.g. two inductors and one capacitor, can exhibit asymmetric resonance with arbitrary Q-factors flexiblely. Meanwhile, four passive components can exhibit various resonances including the Lorentz-like and reversely electromagnetically induced transparency (EIT) formations. Our work not only provides an intuitive understanding of Fano resonances, but also pave the way to realize Fano resonaces using simple circuit elements.
- Subjects :
- Physics
Multidisciplinary
Electromagnetically induced transparency
Fano resonance
02 engineering and technology
Fano plane
Input impedance
021001 nanoscience & nanotechnology
Topology
01 natural sciences
Article
law.invention
Capacitor
law
visual_art
0103 physical sciences
Electronic component
visual_art.visual_art_medium
Equivalent circuit
010306 general physics
0210 nano-technology
Electronic circuit
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....526560d45276ecf9b87215372cf8ed88
- Full Text :
- https://doi.org/10.1038/srep31884