MULTISPECTRAL IMAGING USING SILICON NANOWIRES

摘要

An optical apparatus, including an optical filter comprising an array of nanowires oriented perpendicular to a light incidence surface of the filter, wherein the optical filter transmits light at a first wavelength that is incident on the incidence surface, wherein the first wavelength is based on a cross-sectional shape of the nanowires. The nanowires are created using a single lithography step. An imaging device and a method of fabricating the same, the device including an array of nanowires formed on a substrate, wherein at least one nanowire in the array of nanowires includes a photoelectric element to produce a photocurrent based, at least in part, on incident photons absorbed by the at least one nanowire.