Terahertz frequency measurement of far-infrared laser with an improvement of Martin–Puplett interferometer
Terahertz frequency measurement of far-infrared laser with an improvement of Martin–Puplett interferometer
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DOI：
10.1016/j.nima.2009.12.049
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发表时间：
2010-03
影响因子：
1.4
通讯作者：
Wenxin Liu;Dai Wu;Yingxin Wang;Chuanxiang Tang;Wenhui Huang;Ziran Zhao
中科院分区：
文献类型：
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作者：
Wenxin Liu;Dai Wu;Yingxin Wang;Chuanxiang Tang;Wenhui Huang;Ziran Zhao
提出了一种改进的用于太赫兹频率测量的Martin-Puplett干涉仪（MPI），用平面镜代替屋顶镜。为了理解改进MPI的功能，描述了其基本原理，分析了其电场特性。利用改进后的MPI测量了远红外激光器的工作频率，实验结果与理论报道的远红外激光器的工作频率符合较好。
In this paper, we present an improvement of Martin–Puplett interferometer (MPI) for terahertz frequency measurement, in which flat mirrors replace the roof ones. To understand the function of the improved MPI, its basic principle is described and the characteristics of electric field are analyzed. With the improved MPI, the operation frequency of a far-infrared laser is conveniently measured, and the experimental result is in good agreement with that of the far-infrared laser theoretical reported.