Optical Sensing Apparatus
AssigneeArtilux, Inc.
InventorsYen-Ju Lin, Yun-Chung Na
Life of this patent
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Abstract
An optical sensing apparatus includes a first photo-detecting layer having a first absorption region configured to absorb light in at least a visible spectrum; a second photo-detecting layer formed over the first photo-detecting layer, the second photo-detecting layer having a second absorption region configured to absorb light in at least a mid-infrared spectrum; a first buffer layer formed over the second photo-detecting layer; and a second buffer layer formed over the first photo-detecting layer and under the second photo-detecting layer.
Claims20
An optical sensing apparatus comprising:
- a first photo-detecting layer comprising a first absorption region configured to absorb light in at least a visible spectrum;
- a second photo-detecting layer formed over the first photo-detecting layer, the second photo-detecting layer comprising a second absorption region configured to absorb light in at least a mid-infrared spectrum;
- a first buffer layer formed over the second photo-detecting layer;
- and
- a second buffer layer formed over the first photo-detecting layer and under the second photo-detecting layer.
An optical sensing apparatus comprising:
- a silicon layer comprising a first absorption region configured to absorb light in at least a visible spectrum;
- a germanium layer formed over the silicon layer, the germanium layer comprising a second absorption region configured to absorb light in at least a short-wave infrared (SWIR) spectrum;
- a black phosphorus layer formed over the germanium layer, the black phosphorus layer comprising a third absorption region configured to absorb light in at least a mid-infrared spectrum;
- a first buffer layer formed over the black phosphorus layer;
- and
- a second buffer layer formed over the silicon layer and under the black phosphorus layer.
An optical sensing apparatus comprising:
- a silicon layer comprising a first absorption region configured to absorb light in at least a visible spectrum;
- a germanium layer formed over the silicon layer, the germanium layer comprising a second absorption region configured to absorb light in at least a SWIR spectrum;
- a two-dimensional-material layer formed over the germanium layer, the two-dimensional-material layer comprising a third absorption region configured to absorb light in at least a mid-infrared spectrum;
- a first buffer layer formed over the two-dimensional-material layer;
- a second buffer layer formed over the silicon layer and under the two-dimensional-material layer.
Dependencies are inferred from the claim text.