Optical fields in a multilayered microsphere with a quasiperiodic spherical left-handed stack (Q627335)

The paper is devoted to studying the radial distribution of the electromagnetic field and the spectrum of the eigenfrequencies in coated microspheres with alternating quasiperiodic layers having left-handed (LH) materials included. At an increase of the quasiperiodicity parameter \(\gamma\), the boundaries of the spectral band gaps acquire the intended shape. When \(\gamma\) exceeds the inverse golden mean value, a structure with extremely narrow separated resonant peaks with nearly complete transmittance arises. It is found that the field peaks in the radial distribution forbidden band is located not in the center of the microsphere, but in the layers that cover such a microsphere.