THz Thin Film Sensing with Labyrinth Metasurface Absorber

Irati Jauregui-Lopez, Pablo Rodriguez-Ulibarri, Aitor Urrutia, Sergei A. Kuznetsov, Miguel Beruete

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

In this work, a labyrinth metasurface sensor operating in the Terahertz (THz) band is presented. The strong electric field confinement leads to an excellent performance of this structure as thin film sensor. The sensing capability of the designed structure is numerically and experimentally measured. As the analyte (i.e. the substance sensed) thickness is increased, a frequency shift of the fundamental resonance is observed. Two different designs are studied both of them with excellent performance. An experimental average Figure of Merit (FOM) of 5093 (mm•RIU)-1 and 3111 (mm•RIU)-1 is obtained for both designs, improving the results found in the literature for structures fabricated with the same manufacturing techniques. Next, a numerical study of the behavior of the metasurface depending on the polarization characteristics is presented. The polarization angle of the incident E-field is varied between 0° and 90° showing a stable response in terms of the reflection coefficient. This aspect presents great advantages for thin film sensing, and could be extended to biological sensing in the future.

Язык оригиналаанглийский
Название основной публикации13th European Conference on Antennas and Propagation, EuCAP 2019
ИздательInstitute of Electrical and Electronics Engineers Inc.
Число страниц3
ISBN (электронное издание)9788890701887
СостояниеОпубликовано - 1 мар 2019
Событие13th European Conference on Antennas and Propagation, EuCAP 2019 - Krakow, Польша
Продолжительность: 31 мар 20195 апр 2019

Серия публикаций

Название13th European Conference on Antennas and Propagation, EuCAP 2019

Конференция

Конференция13th European Conference on Antennas and Propagation, EuCAP 2019
СтранаПольша
ГородKrakow
Период31.03.201905.04.2019

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  • Цитировать

    Jauregui-Lopez, I., Rodriguez-Ulibarri, P., Urrutia, A., Kuznetsov, S. A., & Beruete, M. (2019). THz Thin Film Sensing with Labyrinth Metasurface Absorber. В 13th European Conference on Antennas and Propagation, EuCAP 2019 [8739425] (13th European Conference on Antennas and Propagation, EuCAP 2019). Institute of Electrical and Electronics Engineers Inc..