科研之友
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摘要
The concept of equivalent surface impedance is applied for electromagnetic modeling of thin-film samples, e. g., nano-layers of deoxyribonucleic acid, placed on a metallic surface. For the first time, it is shown that by using such a concept, the performance of resonance-based terahertz bio-chips can be easily evaluated in terms of analytic sensitivity and selectivity. Numerical results are presented for the performance of a planar resonator as an example when used as a transducer in a bio-chip sensor. The proposed model is general and can be applied to any resonant transducer with metallic surface for receiving thin-film samples.
- 出版日期2010-10-15
