Bow-Tie Cavity for Terahertz Radiation
Bow-Tie Cavity for Terahertz Radiation
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DOI：
10.3390/photonics6010001
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发表时间：
2018-12
期刊：
影响因子：
2.4
通讯作者：
L. Consolino;A. Campa;D. Mazzotti;M. Vitiello;P. De Natale;S. Bartalini
中科院分区：
文献类型：
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作者：
L. Consolino;A. Campa;D. Mazzotti;M. Vitiello;P. De Natale;S. Bartalini
报道了一种用于太赫兹(THz)辐射的蝴蝶结谐振腔的研制、测试和性能分析。蝶形腔采用线栅偏振器作为输入/输出耦合器，以及一对镀有500 nm厚金膜的铜球面镜。与以前的设置相比，改进后测得的精细值F=123，品质因数Q=5.1·105。对谐振器的性能和相关参数进行了理论预测和讨论，并对模拟光谱和实验光谱进行了比较。
We report on the development, testing, and performance analysis of a bow-tie resonant cavity for terahertz (THz) radiation, injected with a continuous-wave 2.55 THz quantum cascade laser. The bow-tie cavity employs a wire-grid polarizer as input/output coupler and a pair of copper spherical mirrors coated with an unprotected 500 nm thick gold layer. The improvements with respect to previous setups have led to a measured finesse value F = 123, and a quality factor Q = 5.1·105. The resonator performances and the relevant parameters are theoretically predicted and discussed, and a comparison among simulated and experimental spectra is given.