TERAHERTZ EMISSION SOURCE AND OPTICAL SYSTEM COMPRISING ONE SUCH SOURCE

摘要

The invention relates to a terahertz wave emission source, comprising a source device emitting two incident waves, ?1 and ?2, which are selected such that the difference frequency thereof, ?d, is of the order of terahertz. Said waves are conveyed by a guide (2) to the detection surface of a photodetector (30) which is equipped with a built-in multi-strand antenna (31). The photodetector and the antenna form a miniature emission head (3). The aforementioned miniature emission head and the waveguide (2) can be built into an invasive probe-type assembly, thereby enabling in vivo applications. The invention is suitable for imaging systems, in particular medical imaging systems, and a hyperthermia treatment system.