Calibration free terahertz imaging based on 2D electro-optic sampling technique
Calibration free terahertz imaging based on 2D electro-optic sampling technique
复制标题
基于二维电光采样技术的免标定太赫兹成像
DOI：
10.1049/el:20031112
复制
发表时间：
2003
影响因子：
1.1
通讯作者：
K. Sakai
中科院分区：
文献类型：
--
作者：
M. Usami;R. Fukasawa;M. Tani;M. Watanabe;K. Sakai
提出并实现了一种用于太赫兹成像的极性调制二维电光采样技术。极性调制大大提高了信号对太赫兹场的线性度。将该技术与软件锁定检测相结合，发现与传统的光斩波相比，调制效率也得到了提高。
A two-dimensional electro-optic sampling technique with polarity modulation for THz imaging is proposed and demonstrated. The polarity modulation greatly improves the signal linearity to the THz field. Combining this technique with software lock-in detection, it is found that the modulation efficiency is also improved compared to conventional optical chopping.