Fano resonances in photonics
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...While the analytical solution of Maxwell’s equations does not exist, the description of the transmission T with the Fano formula is still widely used by introducing the Fano parameter phenomenologically [32]....
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"Fano resonances in photonics" refers background or result in this paper
...The unique feature of the Fano formula is that the scattering efficiency described by equation (1) has two critical points: when the scattering efficiency vanishes and when it takes the maximum value close to unity....
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...Similar to equation (1), q = cotδ, where δ is the phase of the response function (ω2 − ω1 + iγ1) of the damped oscillator 2, playing the role of continuum at the resonance of oscillator 1....
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...Another approach is to decompose the spectrum and fit the spectral line with the Fano formula (equation (1)) by varying different available parameters....
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...The insets show the Fano lineshapes σ(ω) from equation (1) for selected values of q(δ)....
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...It is crucially important that the Fano formula (equation (1)) is useful for describing resonant phenomena in a broad range of systems, including optomechanical resonators16, semiconductor nanostructures17,18, superconductors19,20, photonic crystals21–26, dielectric nanoparticles27, plasmonic nanoantennas28–34, and many others....
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