Spatial Fano resonance of a dielectric microsphere impinged on by a Bessel beam

General concept of Fano resonance is considered so that to show the possibility this in space. Using a recently found solution for Bessel wave beam impinging dielectric sphere, we analyze electromagnetic fields near microsphere with different optical size and permittivity values. We theoretically reveal spatial when resonant mode sphere interferes {an amount } non-resonant modes. This results giant jump electric field behind impinged by first-order beam. The local minimum turns out be noticeably distanced from rear edge microsphere. However, near-field effect prove it. also can utilized engineering submicron trap unusual useful properties.