Patent ID: 9349917
Filing Date: 2016-05-24
CPC Classification: G01J,G01N,G02F,H01L

Claim Text:
1. A photoconductive antenna adapted to generate terahertz waves when irradiated by pulsed light, the photoconductive antenna comprising: a semiconductor layer; a first conductive layer disposed on a first surface of the semiconductor layer; a second conductive layer disposed on the first surface of the semiconductor layer with a prescribed gap being formed between the first conductive layer and the second conductive layer; a first electrode electrically connected to the first conductive layer; and a second electrode electrically connected to the second conductive layer, wherein the first conductive layer contains a first conductive type impurity, the second conductive layer contains a second conductive type impurity, and the semiconductor layer has a carrier density lower than a carrier density of the first conductive layer or a carrier density of the second conductive layer.