Abstract: A multispectral filter matrix for an electromagnetic wave, the matrix including at least a first and a second optoelectronic element, each optoelectronic element including a colour filter and a photoelectric transducer facing the filter, each colour filter forming a Fabry-Perot cavity including a first reflective layer, a second reflective layer and a Fabry-Perot cavity layer of dielectric material between the first reflective layer and the second reflective layer, the layer of dielectric material including a lower surface, in contact with the first reflective layer; the lower surface being curved, an upper surface in contact with the second reflective layer, the upper surface being curved, the average thicknesses of the two layers of dielectric material of the two filters being different.

Abstract: A rectenna device (400) for converting incident light to electrical energy is disclosed. The rectenna device comprises a substrate (402), a first metallic layer (404) having a predefined thickness deposited on top of the substrate, a rectifying element (405) deposited on top of the first metallic layer, a second metallic layer (408) deposited on top of said rectifying element and configured to collect electromagnetic waves of the incident light and to couple it into plasmonic waves within the rectenna device, the second metallic layer comprising an array of a plurality of metallic patches (410) spaced from each other according to a predefined spacing, each metallic patch having predefined dimensions.

Abstract: A rectenna device (400) for converting incident light to electrical energy is disclosed. The rectenna device comprises a substrate (402), a first metallic layer (404) having a predefined thickness deposited on top of the substrate, a rectifying element (405) deposited on top of the first metallic layer, a second metallic layer (408) deposited on top of said rectifying element and configured to collect electromagnetic waves of the incident light and to couple it into plasmonic waves within the rectenna device, the second metallic layer comprising an array of a plurality of metallic patches (410) spaced from each other according to a predefined spacing, each metallic patch having predefined dimensions.

Abstract: A bolometric detector of LWIR wavelengths, including: a substrate; a membrane suspended above the substrate by supporting elements; an absorbing element comprising several MIM structures each formed with a lower metal element, an upper metal element specific to each MIM structure and with a dielectric element positioned between the lower and upper metal elements; a thermometric element comprising at least one thermometric material; wherein: the membrane includes the upper metal element, the thermometric material and one portion of the dielectric element of each MIM structure, the upper metal elements of at least two MIM structure have different dimensions relatively to each other in the main plane of the membrane, and the dielectric element of each of the MIM structures includes at least one of the following materials having vibrational modes in the LWIR range: Al2O3, AlN, TiO2.

Abstract: A bolometric detector of LWIR wavelengths, including: a substrate; a membrane suspended above the substrate by supporting elements; an absorbing element comprising several MIM structures each formed with a lower metal element, an upper metal element specific to each MIM structure and with a dielectric element positioned between the lower and upper metal elements; a thermometric element comprising at least one thermometric material; wherein: the membrane includes the upper metal element, the thermometric material and one portion of the dielectric element of each MIM structure, the upper metal elements of at least two MIM structure have different dimensions relatively to each other in the main plane of the membrane, and the dielectric element of each of the MIM structures includes at least one of the following materials having vibrational modes in the LWIR range: Al2O3, AlN, TiO2.

Abstract: Spectral filtering device including a dielectric substrate, a first filter capable of acting as a passband filter in the visible range and having a plurality of first nanostructures with a uniform spacing between each other. Each nanostructure has a portion of dielectric material arranged between two portions of metallic material such that one of the two portions of metallic material is arranged between the substrate and the portion of dielectric material. A second filter capable of acting as a passband filter in the infrared range is also included having a plurality of second nanostructures with a uniform spacing between each other and each comprising a portion of dielectric material of which only one face is in contact with a portion of metallic material.

Abstract: A photosensor, including: first and second photosensitive cells formed next to each other in a semiconductor substrate; first and second dielectric interface layers coating, respectively, the first and second cells; and a resonance grating formed in a third dielectric layer coating the first and second interface layers, wherein the first and second interface layers have different thicknesses, or different refraction indexes, or different thickness and refraction indexes.

Abstract: A bolometric detector including at least: a substrate; a membrane suspended above the substrate by support elements; an absorber element comprising at least one MIM structure formed by a lower metal element, an upper metal element and a dielectric element arranged between the lower metal element and the upper metal element; a thermometer element comprising at least one thermometric material; wherein the membrane includes at least the upper metal element of the MIM structure and the thermometric material, and wherein the thermometric material is part of the dielectric element of the MIM structure.

Abstract: Spectral filtering device comprising: a dielectric substrate; a first filter capable of acting as a passband filter in the visible range and comprising a plurality of first nanostructures with a uniform spacing between each other and each comprising a portion of dielectric material arranged between two portions of metallic material such that one of the two portions of metallic material is arranged between the substrate and the portion of dielectric material; a second filter capable of acting as a passband filter in the infrared range and comprising a plurality of second nanostructures with a uniform spacing between each other and each comprising a portion of dielectric material of which only one face is in contact with a portion of metallic material.