Narrowband light filters

An image sensor comprising:

• an array of narrowband light filters, each comprising:
• at least two electrically conductive bodies having a first thickness;
• an electrically conductive thin film layer disposed between the at least two electrically conductive bodies, the electrically conductive thin film layer having a second thickness wherein the second thickness is less than the first thickness, and the electrically conductive thin film having a first side defining a plane disposed such incident electromagnetic radiation is incident thereon and a second side disposed opposite said first side;
• at least one slit disposed through the electrically conductive thin layer;
• wherein the electrically conductive thin film layer and electrically conductive bodies are disposed between first and second layers of dielectric material;
• wherein the electrically conductive bodies extend vertically above the plane of the first side of the electrically conductive thin film and reflect the incident electromagnetic radiation onto the electrically conductive thin film;
• wherein a surface of the at least two electrically conductive bodies and a surface of the electrically conductive thin film are coplanar;
• wherein the electrically conductive bodies and slit are configured in a relative geometry such that a resonance is created in electromagnetic radiation incident thereon such that only electromagnetic radiation of a specific spectral band is passed through the at least one slit;
• and
• wherein each of the narrowband light filters are separated by a distance of at least 50 nm.