Terahertz wave focal-plane multiwavelength phase imaging.
We present a multiwavelength phase imaging method for terahertz (THz) reflective focal-plane imaging. The phase of the THz pulse at each pixel is linearly fitted within the effective frequency range to reconstruct the ranging profile of the object. The results show that the multiwavelength method significantly improves the ranging resolution and imaging quality in THz reflective imaging applications.
Beijing Key Lab for Terahertz Spectroscopy and Imaging, Capital Normal University, No. 105 XiSanHuan BeiLu, Beijing 100048, China. zhlliang@126.com
Liangliang
L
Zhang
Hua
H
Zhong
Yan
Y
Zhang
Nick
N
Karpowicz
Cunlin
C
Zhang
Yuejin
Y
Zhao
Xi-Cheng
XC
Zhang