TeraHertz probe array imaging system

摘要

A probe array (1) for an imaging system for examining an object (19) comprising at least one emitter (7) for emitting radiation, a plurality of detectors (9) for detecting radiation and means for directing radiation emitted by the at least one emitter (7) to the object (19) and for directing radiation reflected from the object (19) to at least two of the plurality of detectors (9) wherein in use the emitted radiation is scanned by means (21) across the object (19).

主权项

1. An imaging system for examining an object, said system comprising:
a probe array and a scanning mechanism, said probe array comprising:
a plurality of emitters of THz radiation, anda plurality of photoconductive detectors for detecting radiation, the plurality of photoconductive detectors and emitters being arranged in a one-dimensional array along a first axis, the probe array being configured such that radiation emitted by at least one emitter of the plurality of emitters is directed to the object and reflected back from the object to at least two of the plurality of detectors; the plurality of emitters being further configured to create an extended focus at the object which extends in a direction parallel to the first axis; and said scanning mechanism being configured to rotate or move said probe array such that a beam of the emitted radiation is scanned, in a direction orthogonal to said first axis, across the object, and reflected back to said at least two of the plurality of detectors.