Photodetector
AssigneeHamamatsu Photonics K.K.
InventorSoh Uenoyama
Life of this patent
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Abstract
There is provided a photodetector including: a photodetecting element having a surface and including a plurality of light-receiving regions arranged along the surface; and a plurality of meta-lens portions arranged on the surface to correspond to the plurality of light-receiving regions, wherein, in one light-receiving region and one meta-lens portion corresponding to each other among the plurality of light-receiving regions and the plurality of meta-lens portions, the one meta-lens portion includes a plurality of meta-lenses arranged along the surface.
Claims8
A photodetector comprising:
- a photodetecting element having a surface and including a plurality of light-receiving regions arranged along the surface;
- and
- a plurality of meta-lens portions arranged on the surface to correspond to the plurality of light-receiving regions,
- wherein, in one light-receiving region and one meta-lens portion corresponding to each other among the plurality of light-receiving regions and the plurality of meta-lens portions, the one meta-lens portion includes a plurality of meta-lenses arranged along the surface, and
- wherein a single period of the plurality of meta-lenses is equal to or smaller than a wavelength of light detected by the photodetecting element.
A photodetector comprising:
- a photodetecting element having a surface and including a plurality of light-receiving regions arranged along the surface;
- and
- a plurality of meta-lens portions arranged on the surface to correspond to the plurality of light-receiving regions,
- wherein, in one light-receiving region and one meta-lens portion corresponding to each other among the plurality of light-receiving regions and the plurality of meta-lens portions, the one meta-lens portion includes a plurality of meta-lenses arranged along the surface,
- wherein, in the one light-receiving region and the one meta-lens portion corresponding to each other, the one meta-lens portion has a first meta-lens and a plurality of second meta-lenses as the plurality of meta-lenses, and
- wherein an area of the first meta-lens is larger than an area of each of the plurality of second meta-lenses.
A photodetector comprising:
- a photodetecting element having a surface and including a plurality of light-receiving regions arranged along the surface;
- and
- a plurality of meta-lens portions arranged on the surface to correspond to the plurality of light-receiving regions,
- wherein, in one light-receiving region and one meta-lens portion corresponding to each other among the plurality of light-receiving regions and the plurality of meta-lens portions, the one meta-lens portion includes a plurality of meta-lenses arranged along the surface,
- wherein, in the one light-receiving region and the one meta-lens portion corresponding to each other, when a distance from the one meta-lens portion to a surface of the one light-receiving region is denoted by T (μm) and an area of the one meta-lens portion is denoted by S (μm2), Tis 1.0S0.5 or less.
Dependencies are inferred from the claim text.