Device for imaging an object with a radiation source for emitting a terahertz radiation

摘要

The apparatus (1) for imaging an object (3) with a radiation source (4) for emitting a terahertz radiation in the far-infrared - spectral region onto the object (3), a detector arrangement (12) for the detection of terahertz radiation with an image-recording optics (10) for focusing of the terahertz radiation after propagation through the object (3) and / or reflection on the object (3) on the detector arrangement (12), and a with the detector arrangement (12) is connected to the evaluation unit (μp) for the production of an image of the object (3) in dependence on the detected, terahertz radiation, characterized in that the image-recording optics (10) at least a focusing element (11, 14b, 16, 17b) for providing rod-shaped, focal points (9) in such a way that adjacent rod-shaped, focal points (9) at the ends of the focal points (9) in the direction of the longer semiaxis of the focal points (9) overlap.