Light sensors and sources comprising at least one microcavity with a localized Tamm plasmon mode

摘要

A light source or sensor including: a stack of dielectric or semiconductive layers includes an alternation in a vertical direction of layers of high refractive index and of low refractive index forming an interference mirror, and presenting a top layer of high refractive index; at least one first metal pellet deposited or transferred on the top layer of the stack of layers to form a structure supporting a first Tamm plasmon mode that is spatially localized in at least one lateral direction perpendicular to the vertical direction; and at least one light emitter or detector arranged inside the stack of layers under the metal pellet and at a depth corresponding to a local maximum of the electric field of the Tamm plasmon mode to emit or detect radiation at the resonant wavelength thereof.