
Yet another output of our fruitful collaboration - this paper will be useful for anyone performing near-field experiments on dielectric resonators near conductive surfaces, in particular, in experiments using aperture probes. We explain the polarity of the Fano-profiles observed in the near-field electric field spectra recorded at frequencies close to the frequencies of magnetic dipole resonances of dielectric resonators.
Summary: Fano resonances are observed in the near‐field electric‐field spectra of dielectric particles sustaining magnetic multipole resonances and located near a conductive surface (reflector). This paper proves, theoretically and experimentally, that these Fano resonances originate from the particles' interaction with the standing wave formed near the reflector; and that their polarity is defined by the relative positions of the resonant particle, the observation points, and the reflector.
For more details read our paper now available online in Laser & Photonics Reviews
https://doi.org/10.1002/lpor.201800037
Summary: Fano resonances are observed in the near‐field electric‐field spectra of dielectric particles sustaining magnetic multipole resonances and located near a conductive surface (reflector). This paper proves, theoretically and experimentally, that these Fano resonances originate from the particles' interaction with the standing wave formed near the reflector; and that their polarity is defined by the relative positions of the resonant particle, the observation points, and the reflector.
For more details read our paper now available online in Laser & Photonics Reviews
https://doi.org/10.1002/lpor.201800037