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US 7,115,868 B2Granted
Photodetector for weak light with UV transparent substrates
AssigneeNational Institute of Information and Communications Technology, Incorporated Administrative Agency
InventorsMikio Fujiwara, Masahide Sasaki, Makoto Akiba
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Abstract
The present invention provides a photodetector for weak light that can prevent noise from impurities, prevent electrodes from disconnecting from the substrate, and can be easily cooled; the present invention further provides a photodetector for weak light that can count the number of photons; the present invention solves the above problems by using an ultraviolet light transparent substrate on the photodetector for weak light.
Claims15
A photodetector for weak light comprising an ultraviolet transparent substrate,
- the ultraviolet transparent substrate comprises an integrating read circuit that includes light detection means,
- the light detection means for receiving light from a light source and detecting the light,
- the light source is positioned at the integrating read circuit side of the ultraviolet transparent substrate.
Dependencies are inferred from the claim text.