Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	3D-printed split ring resonators as potential microwave strain sensors
Δημιουργός/Συγγραφέας:	Viskadourakis, Zacharias Orfanou, M. Theodosi, A. [EL] Τσιλιπάκος Οδυσσέας[EN] Tsilipakos, Odysseas Koudoumas, E. Kenanakis, G.
Ημερομηνία:	2025
Γλώσσα:	Αγγλικά
ISSN:	3005-1851
DOI:	10.1007/s44397-025-00019-9
Περίληψη:	In the current study, mm-scale, split ring resonator meta-atoms are tested as potential strain sensors. In particular highly flexible, stand-alone split ring resonators were developed employing the so-called stereolithography technique, and subsequently coated with conductive silver paste, to achieve high electrical conductivity. All of them, exhibit sizable resonance features in the frequency regime 3–8 GHz, depending on their dimensionality. In order to study their electromagnetic response upon strain deformations, meta-atoms were attached on highly flexible stripes, made of acrylic joint sealant. In all cases, a clear shift of the linear electromagnetic response was recorded, upon strain induced (up to 40%), enabling their sensing capability. Such experimental results were further confirmed by corresponding theoretical simulations. The performance of such strain sensors was evaluated through strain sensitivity and strain gauge factor, reaching up to 6.1 MHz/%, and 0.144 respectively. On the other hand, the electromagnetic performance of the SRRs, in the presence of strain, was verified through the quality factor, laying in the range 40–50, while the measurement error was found to be 2.3–14%, depending on the sample. Moreover, all resonators exhibited high durability in fatigue experiments, as well as they did not show any hysteretic behavior, upon a full stress-destress cycle. Thus, 3D—printed split ring resonator metasurfaces emerge as potential candidates for strain sensing applications.
Τίτλος πηγής δημοσίευσης:	Discover Sensors
Τόμος/Κεφάλαιο:	1
Τεύχος:	1
Θεματική Κατηγορία:	[EL] Εφαρμοσμένη οπτική. Φωτονική[EN] Applied optics. Photonics [EL] Φασματοσκοπία[EN] Spectroscopy
Λέξεις-Κλειδιά:	microresonators microwave photonics metamaterials nanosensors optical sensor sensors
Χρηματοδότης:	Hellenic Foundation for Research and Innovation (H.F.R.I.)
Χρηματοδοτικό πρόγραμμα:	METAmaterial-based ENERGY autonomous systems (META-ENERGY)
Αναγνωριστικό χρηματοδοτικού προγράμματος:	2936
Κάτοχος πνευματικών δικαιωμάτων:	© The Author(s) 2025
Όροι και προϋποθέσεις δικαιωμάτων:	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licens es/by-nc-nd/4.0/
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1007/s44397-025-00019-9
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο