Frequency selective surfaces for high sensitivity terahertz sensing

By C. Debus, P. Bolívar. 2007

321 citations recorded by the source corpus.

An apporach for the sensing of small amounts of chemical and biochemical material is presented. A frequency selective surface made from asymmetric split ring resonators is excited with free space radiation. Due to interference effects a resonance occurs with a steep flank in the frequency response which is shifted upon dielectric loading. Utilizing a strong E-field concentration by selective loading the detection of very small amounts of probe material becomes possible. The functionality is proven by numerical simulation and the optimization of structure and loading is performed.

Subfields: Aerospace Engineering, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/ee073f3f7b8e0a8cc9f14ea57b5b9add3d033b16

Citations in the corpus

• Terahertz microfluidic sensor based on a parallel-plate waveguide resonant cavity (2009, unknown): “This sensing strategy has been the focus of considerable research in the terahertz (THz) region of the spectrum [1-4].”