DETECTEUR PROPRE A DETECTER UNE PREMIERE LONGUEUR D'ONDE ET A FILTRER UNE DEUXIEME LONGUEUR D'ONDE

摘要

The invention relates to a detector (10) including: - an array (R) of steps (P) less than or equal to the first wavelength; - a first layer (C1) made of a first absorbent dielectric material and having a first thickness (e1) along a stacking direction (Z), the first thickness (e1) being no greater than the first wavelength; and - a second layer (C2) having second parameters influencing the electric field generated when the detector (10) is lit up by a wave having the second wavelength. The second parameters are selected so that the electric field generated when the detector (10) is lit up by a wave having the second wavelength has a node in the first layer (C1).