Patent ID: 8946632
Filing Date: 2015-02-03
Classification: G01N,H01L

Abstract:
1. A Terahertz (THz) interferometric synthetic aperture imaging system comprising a continuous wave (CW) photomixing detection apparatus, the CW photomixing apparatus comprising at least one collimator coupled to a THz detector array, and a first THz radiation source for emitting radiation to be received at the at least one collimator; and a second THz radiation source independent of the first THz radiation source, positioned and operable to emit THz radiation toward a sample such that at least some radiation reflected from the sample is received by at least one detector in the THz detector array, wherein the first and second THz radiation sources are phase incoherent, and wherein the system is operable to detect a THz electric field at multiple locations and use correlated phase and amplitude of the electric field from pairs of detectors to reconstruct an image of the sample.