  High refractive index dielectric nanostructures offer a versatile platform to
control light-matter interaction at the nanoscale as they can easily support
electric and magnetic modes with low losses. An additional property that makes
them extraordinary is that they can support low radiative modes, so-called
anapole modes. In this work, we propose a spectrally tunable anapole nanoheater
based on the use of a dielectric anapole resonator able to amplify ten-fold the
thermal response of a plasmonic nanoheater. This would allow the use of lower
light intensities to achieve striking heating effects. As proof of concept, we
perform a detailed study of the thermo-plasmonic response of a gold nanoring
used as heating source and a silicon disk, designed to support anapole modes,
located in its center acting as anapolar resonator. Furthermore, we utilize the
anapole excitation to easily shift the thermal response of these structures
from SWIR to the NIR range.
