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arXiv 2103.02120physics.optics
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波导模与吸收介质的相互作用

Interaction between a Waveguide Mode and an Absorptive Medium

Hadi Amarloo, Safieddin Safavi-Naeini

摘要:

吸收光谱学研究被测材料样品对电磁波的吸收。相互作用的电磁波可以在自由空间或波导中传播。与自由空间设置相比,基于波导的吸收光谱方法具有若干优点。波导截面对波导模与样品之间相互作用的影响可以用一个因子表示,称为相互作用因子。在这篇文章中,一个新的公式的相互作用因子的推导。结果表明,该因子与波导模式的能量速度成反比。

英文摘要:

Absorption spectroscopy studies the absorption of electromagnetic wave in a material sample under test. The interacting electromagnetic wave can be propagating in free space or in a waveguide. The waveguide-based absorption spectroscopy method has several advantages compared to the free space setup. The effect of the waveguide cross section on the interaction between the waveguide mode and the sample can be expressed by a factor, called interaction factor. In this article, a new formulation for the interaction factor is derived. It is shown that this factor is inversely proportional to the energy velocity of the waveguide mode.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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