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US 5,313,058 AGranted
Semiconductor optoelectronic detector
AssigneeThomson-CSF
InventorsAlain Friederich, Pierre Leclerc
Life of this patent
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Abstract
An optoelectronic detector using a photodetector (1) and a stress induction device for inducing elastic waves with the stress inducing device being mechanically coupled to the photodetector. The stress inducing device includes an excitation which permits the transmission of the elastic waves.
Claims3
An optoelectronic detector comprising:
- a photodetector having at least one quantum well situated on one face of a photoelectric substrate;
- a piezoelectric transducer mechanically coupled to said photodetector wherein a second face of said photoelectric substrate, opposed to said first face, is coupled to said piezoelectric transducer and wherein said photodetector includes one of a transparent electrode and an electrode having an opening for receiving radiation to be detected.
Dependencies are inferred from the claim text.