Quasi-optical cw mm-wave electron spin resonance spectrometer
Quasi-optical cw mm-wave electron spin resonance spectrometer
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DOI：
10.1063/1.1149200
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发表时间：
1998-11-01
影响因子：
1.6
通讯作者：
Riedi, PC
中科院分区：
文献类型：
--
作者：
Smith, GM;Lesurf, JCG;Riedi, PC
我们描述了一种新型连续波毫米波电子自旋共振 (ESR) 谱仪，设计用于在 80-200 GHz 频率范围和 2.5-300 K 温度范围内工作，可以轻松扩展到更高频率。该光谱仪使用耦合到圆形波纹波导的双峰反射腔，并使用高斯准光学器件进行大部分前端信号处理。该技术具有非常低的插入损耗，并允许采用多种复杂的测量技术，包括感应操作，从而显着降低颤噪效应和杂散反射的影响。给出了许多示例来说明仪器的灵敏度以及在高场使用 ESR 的优点。 (C) 1998 年美国物理研究所。 [S0034-6748(98)00311-6]。
We describe a novel cw millimeter-wave electron spin resonance (ESR) spectrometer designed to operate in the frequency range of 80-200 GHz and in the temperature range of 2.5-300 K, which may be easily scaled to higher frequencies. The spectrometer uses a bimodal reflection cavity coupled to a circular corrugated guide and uses Gaussian quasi-optics for most of the front-end signal processing. This technique has very low insertion loss and allows a number of sophisticated measurement techniques to be employed including induction operation, which significantly reduces the effect of microphonics and stray reflections. A number of examples are given illustrating the sensitivity of the instrument and the advantages of using ESR at high fields. (C) 1998 American Institute of Physics. [S0034-6748(98)00311-6].