Chinese Optics Letters, 2010, 8 (2): 162, Published Online: Mar. 5, 2010
Study of terahertz interferometric imaging using optical techniques Download: 894次
太赫兹波 干涉 综合孔径 光学上变频 110.3175 Interferometric imaging 040.2235 Far infrared or terahertz 280.6730 Synthetic aperture radar
Abstract
Principles of terahertz (THz) interferometric synthetic aperture imaging with heterodyne and optical techniques are presented. A THz interferometric experiment based on optical up-conversion is set up. The received THz signal is modulated into an optical carrier and transmitted in a fiber. To simulate phase differences between two THz receivers, the output of receiver is divided and a phase shifter is placed before electro-optical modulation (EOM). Interferometric spectra of these modulated optical signals are examined at different phase shifts. Otherwise, carrier suppression and phase error calibration are discussed for THz interferometric synthetic aperture imaging.
Yuntao He, Yuesong Jiang, Yuedong Zhang, Guoli Fan. Study of terahertz interferometric imaging using optical techniques[J]. Chinese Optics Letters, 2010, 8(2): 162.