title: Two-dimensional interferometric and synthetic aperture imaging with a hybrid terahertz/millimeter wave system.
abstract: We have developed an interferometric synthetic aperture incoherent imaging system at 94 GHz, 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 10?m 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.
authors.affiliation: Department of Physics, New Jersey Institute of Technology, Newark, New Jersey 07102, USA. ks265@njit.edu
authors.forename: Ke
authors.initials: K
authors.lastname: Su
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Liu
authors.forename: Robert B
authors.initials: RB
authors.lastname: Barat
authors.forename: Dale E
authors.initials: DE
authors.lastname: Gary
authors.forename: Zoi-Heleni
authors.initials: ZH
authors.lastname: Michalopoulou
authors.forename: John F
authors.initials: JF
authors.lastname: Federici
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D008872:Microwaves; D018511:Systems Integration; D055053:Terahertz Radiation