论文标题
窃窃私语模式谐振器技术具有微流体通道，用于介电常数测量液体
Whispering-Gallery Mode Resonator Technique with Microfluidic Channel for Permittivity Measurement of Liquids
论文作者
论文摘要
生化液体的研究需要精确确定其复杂介电常数。我们根据高质量的窃窃私语模式（WGM）蓝宝石谐振器开发了一种微波表征技术，其微流体通道充满了正在测试的液体。一种新的方法允许以高精度获得亚微晶/纳米素体积的生化液体的复杂介电常数。该方法基于对WGM微流体谐振器中电磁场与液体相互作用的分析的特殊过程，以及WGM共振频移的测量以及反相反质量因子的变化。该方法已成功地应用于使用开发的微波技术的KA葡萄糖，白蛋白牛血清，乳糖蛋白和细胞色素溶液的KA带中的复杂介电常数。
Studies of biochemical liquids require precise determination of their complex permittivity. We developed a microwave characterization technique on the basis of a high-quality whispering-gallery mode (WGM) sapphire resonator with a microfluidic channel filled with the liquid under test. A novel approach allows obtaining the complex permittivity of biochemical liquids of sub-microliter/nanoliter volumes with high accuracy. The method is based on special procedure of analysis of the interaction of electromagnetic field with liquid in WGM microfluidic resonator and measurements of both the WGM resonance frequency shift and the change of the inverse quality factor. The approach is successfully applied to obtain the complex permittivity in the Ka band of glucose, albumin bovine serum, lactalbumin and cytochrome C aqueous solutions using the developed microwave technique.
