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INFRARED DETECTOR WITH EXTENDED SPECTRAL RESPONSE IN THE VISIBLE FIELD
INFRARED DETECTOR WITH EXTENDED SPECTRAL RESPONSE IN THE VISIBLE FIELD
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机译:可见场中具有扩展光谱响应的红外探测器
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摘要
A semiconductor-based SWIR infrared detector sensitive to wavelengths shorter than about 2.5 microns comprises a stack of semiconductor layers based on III-V materials forming a PIN photodiode. The stack includes a naked electrical contact, called a lower electrical contact, serving as an optical window; and a detection layer sensitive to said wavelengths. The lower contact comprises at least one layer of indirect-bandgap III-V material(s) doped n-type, pseudomorphic or lattice matched with a substrate intended to serve as a temporary substrate possibly being made of a III-V material such as InP or GaAs or of silicon or germanium.
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