Real-time terahertz imaging over a standoff distance (>25meters)

  title={Real-time terahertz imaging over a standoff distance (>25meters)},
  author={A. Lee and Q. Qin and S. Kumar and B. Williams and Q. Hu and J. Reno},
  journal={Applied Physics Letters},
  • A. Lee, Q. Qin, +3 authors J. Reno
  • Published 2006
  • Physics
  • Applied Physics Letters
  • The authors demonstrate the use of a terahertz quantum cascade laser (QCL) for real-time imaging in transmission mode at a standoff distance of 25meters. Lasing frequency was selected for optimum transmission within an atmospheric window at ∼4.9THz. Coarse frequency selection was made by design of the QCL gain medium. Finer selection (to within 0.1THz) was made by judicious choice of laser cavity length to adjust facet losses and therefore lasing threshold bias, in order to overlap the peak… CONTINUE READING
    242 Citations

    Figures from this paper

    Terahertz imaging through self-mixing in a quantum cascade laser.
    • 122
    • PDF
    Portable real-time THz imaging setup based on QC lasers
    Dual-frequency imaging using an electrically tunable terahertz quantum cascade laser
    • 22


    Imaging with terahertz waves.
    • 1,386
    • PDF
    Terahertz imaging of subjects with concealed weapons
    • 74
    • PDF
    High-power terahertz quantum cascade lasers
    • B. Williams, S. Kumar, Q. Hu, J. Reno
    • Materials Science
    • 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference
    • 2006
    • 201
    • PDF
    Security applications of terahertz technology
    • 478
    • PDF