| 摘要 |
A terahertz optical emission device comprises a substrate (3) with first and second electrodes (1, 2) one overlying the other with LT-GaAs dielectric material between them. When a femtosecond laser pulse is applied, terahertz radiation is produced in the plane of the substrate. A corresponding terahertz radiation detector is disclosed, together with a sensor system which uses an emitter and detector for detecting and sensing an operational parameter of a system under test. |
