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Labyrinth Metasurface for Biosensing Applications: Numerical Study on the New Paradigm of Metageometries

التفاصيل البيبلوغرافية
العنوان: Labyrinth Metasurface for Biosensing Applications: Numerical Study on the New Paradigm of Metageometries
المؤلفون: Irati Jáuregui-López, Pablo Rodríguez-Ulibarri, Sergei A. Kuznetsov, Carlos Quemada, Miguel Beruete
المصدر: Sensors, Vol 19, Iss 20, p 4396 (2019)
بيانات النشر: MDPI AG, 2019.
سنة النشر: 2019
المجموعة: LCC:Chemical technology
مصطلحات موضوعية: metasurface, terahertz, biosensor, Chemical technology, TP1-1185
الوصف: 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/µm2.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1424-8220
19204396
Relation: https://www.mdpi.com/1424-8220/19/20/4396; https://doaj.org/toc/1424-8220
DOI: 10.3390/s19204396
URL الوصول: https://doaj.org/article/72dfdbdbffe341ffa79363c461f0727b
رقم الأكسشن: edsdoj.72dfdbdbffe341ffa79363c461f0727b
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14248220
19204396
DOI:10.3390/s19204396