Max Planck Institute for Biophysical Chemistry, Research Group Electron Paramagnetic Resonance, Göttingen, Germany.
J Magn Reson. 2011 Apr;209(2):341-6. doi: 10.1016/j.jmr.2011.01.012. Epub 2011 Jan 26.
We present a dual-mode resonator operating at/near 94 GHz (W-band) microwave frequencies and supporting two microwave modes with the same field polarization at the sample position. Numerical analysis shows that the frequencies of both modes as well as their frequency separation can be tuned in a broad range up to GHz. The resonator was constructed to perform pulsed ELDOR experiments with a variable separation of "pump" and "detection" frequencies up to Δν=350 MHz. To examine its performance, test ESE/PELDOR experiments were performed on a representative biradical system.
我们提出了一种工作在 94GHz（W 波段）微波频率附近的双模谐振器，在样品位置支持两种具有相同场极化的微波模式。数值分析表明，两种模式的频率及其频率间隔都可以在很宽的范围内（高达 GHz）进行调谐。该谐振器被构建为执行具有“泵浦”和“检测”频率可变分离高达 Δν=350MHz 的脉冲 ELDOR 实验。为了检验其性能，在一个典型的双自由基体系上进行了 ESE/PELDOR 实验测试。
