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Two-dimensional interferometric and synthetic aperture imaging with a hybrid terahertz/ millimeter wave system

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Abstract

We have developed an interferometric synthetic aperture incoherent imaging system at 94GHz, in which a high-power electronic millimeter wave source (Gunn Oscillator) is integrated with a continuous-wave terahertz (THz) photomixing detection system to achieve a high signal-to-noise ratio. Imaging of a point source located 10m away from the detector array is presented. Two-dimensional THz reflective images of an extended object with different shapes are reconstructed with only four detectors by use of rotational synthesis.

© 2010 Optical Society of America

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