Multispectral matrix silicon photodetectors with the IR range registration

Abstract

Abstract The paper presents a multi-layer digital camera matrix photodetectors modifications. Modifications are a matrix photodetectors two main types hybrid: spatial structure and multilayer. The matrix photodetectors issue current state with the registering images function in both the visible and IR range is considered in detail. Such well-known manufacturers photo matrices analysis is carried out. To obtain a multispectral image, it is proposed to introduce light-sensitive layers for the near and mid-IR ranges. The developed matrices patterns are presented that allow achieving a balance of each of the five channels (red, green, blue, near and mid-IR) so that the spectrum each selected range has the matrix surface equal share. A layers’ combination is also proposed that allows to apply them separately-a layer that will minimize the noise in this area and focus on the infrared region, and use the visible one as an auxiliary one. At the same time, to get a full-fledged image, you need to apply each pixel interpolation. The light-sensitive layers’ distribution principle in each pattern is described.