Labyrinth Metasurface for Biosensing Applications: Numerical Study on the New Paradigm of Metageometries
| Autor: | Miguel Beruete, Sergei A. Kuznetsov, Carlos Quemada, Pablo Rodriguez-Ulibarri, Irati Jáuregui-López |
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| Přispěvatelé: | Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación, Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. ISC - Institute of Smart Cities, Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Saila |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Terahertz radiation
Computer science Terahertz 02 engineering and technology Biosensing Techniques Polypropylenes lcsh:Chemical technology biosensor 01 natural sciences Biochemistry Field (computer science) Article Analytical Chemistry 010309 optics terahertz Electricity 0103 physical sciences Electronic engineering Figure of merit lcsh:TP1-1185 Sensitivity (control systems) Electrical and Electronic Engineering Instrumentation Detector Fungi Metasurface Numerical Analysis Computer-Assisted 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics metasurface 0210 nano-technology Biosensor |
| Zdroj: | Sensors Volume 19 Issue 20 Academica-e: Repositorio Institucional de la Universidad Pública de Navarra Universidad Pública de Navarra Sensors, Vol 19, Iss 20, p 4396 (2019) Academica-e. Repositorio Institucional de la Universidad Pública de Navarra instname Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s19204396 |
| Popis: | The use of metasurfaces operating in the terahertz regime as biosensor devices has attracted increased interest in recent years due to their enhanced sensitivity and more accurate detection capability. Typical designs are based on the replica of relatively simple unit cells, usually called metaatoms. In a previous paper, we proposed a new paradigm for ultrasensitive thin-film sensors based on complex unit cells, called generically metageometries or labyrinth metasurfaces. Here, we extend this concept towards biosensing, evaluating the performance of the labyrinth as a fungi detector. The sensing capabilities are numerically evaluated and a comparison with previous works in this field is performed, showing that metageometries improve the performance compared to metaatoms both in sensitivity and figure of merit, by a factor of more than four. In particular, we find that it is able to detect five fungi elements scattered on the unit cell, equivalent to a concentration of only 0.004/µ m2. |
| Databáze: | OpenAIRE |
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