Photoconductive element and sensor device

Details Photoconductive element and sensor device Photoconductive element and sensor device

2011-05-24

2011-05-24

Lee, John R (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S338400, C257SE31093

Reexamination Certificate

active

07947942

ABSTRACT:
There is provided a photoconductive element capable of generating and detecting broadband electromagnetic waves such as terahertz waves at a comparatively high efficiency by decreasing or avoiding the absorption of electromagnetic waves into a substrate. A photoconductive element1includes a photoconductive film5exhibiting conductivity by the radiation of light, a substrate6holding the photoconductive film and a thin film sandwiched between the photoconductive film5and the substrate6, the thin film being different in composition from the photoconductive film5and the substrate6. The photoconductive film5is provided with an antenna7having a gap portion2and an electrode4electrically connectable to the antenna7. At least a part of the photoconductive film where the gap portion2of the antenna7is located is single crystal. The substrate6has an opening portion3at a part corresponding to a part of the photoconductive film5where the gap portion2of the antenna7is located.

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