Terahertz spectroscopy of the reactive and radiative near-field zones of split ring resonator
Terahertz spectroscopy of the reactive and radiative near-field zones of split ring resonator
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DOI：
10.1364/oe.20.019395
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发表时间：
2012-08-13
期刊：
影响因子：
3.8
通讯作者：
Tanaka, K.
中科院分区：
文献类型：
--
作者：
Blanchard, F.;Ooi, K.;Tanaka, K.
用太赫兹显微镜在反应区和辐射区激发和观察了单分裂环谐振器的谐振模式。报道了隔离裂环谐振器的两种最低谐振模式及其相应的辐射模式；他们对模拟结果表现出很好的一致性。本文还讨论了从反应型到辐射型近场区的过渡过程。此外，我们的研究结果引入了一种新的技术，通过测量面内辐射近场区来对几十微米尺寸的样品进行太赫兹时域光谱分析。(c) 2012年美国光学学会
A terahertz microscope has been used to excite and observe the resonant modes of a single split ring resonator in the reactive and radiative near-field zones. The two lowest resonant modes of an isolated split ring resonator with their corresponding radiation patterns are reported; they showed good agreement to simulations. The passage from the reactive to radiative near-field zone is also discussed. Further, our result introduced a novel technique to perform terahertz time-domain spectroscopy of samples a few tens of micrometers in size by measuring the in-plane radiative near-field zone. (c) 2012 Optical Society of America