A single-mode tunable plasmonic sensor based on an 8-shaped resonator for cancer cell detection.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
26 08 2023
26 08 2023
Historique:
received:
25
05
2023
accepted:
23
08
2023
medline:
28
8
2023
pubmed:
27
8
2023
entrez:
26
8
2023
Statut:
epublish
Résumé
In this paper, a novel 8-shaped resonator coupled to metal-insulator-metal waveguides is used for designing plasmonic filters and sensors. The resonator supports two resonance modes, which result in peaks in the transmission spectrum of the structure. A Q-factor of 247.4 which can reach up to 270 at the wavelength of 1187.5 nm is observed. By placing vertical and horizontal metal blades in the resonator, two tunable single-mode plasmonic filters are obtained at the first and second resonance modes, respectively. The effect of structural parameters on the transmission spectrum is investigated using the finite-difference time-domain (FDTD) method. Based on the obtained results, the proposed plasmonic structure can be used for biosensing applications such as the detection of basal cancer cells with a sensitivity of 1200 nm/RIU. It is of great significance that both the sensitivity and Q-factor values for the proposed structure are higher than most recent sensors reported in the literature. Therefore, the proposed structure is a potentially promising candidate for filtering and sensing applications.
Identifiants
pubmed: 37633979
doi: 10.1038/s41598-023-41193-3
pii: 10.1038/s41598-023-41193-3
pmc: PMC10460393
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
13976Informations de copyright
© 2023. Springer Nature Limited.
Références
Sci Rep. 2022 Dec 9;12(1):21292
pubmed: 36494440
Biosensors (Basel). 2022 Sep 09;12(9):
pubmed: 36140131
Appl Opt. 2022 May 10;61(14):4068-4073
pubmed: 36256081
Nanomaterials (Basel). 2022 Nov 19;12(22):
pubmed: 36432363
Sci Rep. 2022 Mar 28;12(1):5246
pubmed: 35347198
Sensors (Basel). 2016 May 05;16(5):
pubmed: 27164101
Sensors (Basel). 2018 Jan 04;18(1):
pubmed: 29300331
Biosensors (Basel). 2022 Jun 26;12(7):
pubmed: 35884260
Biosensors (Basel). 2022 Jul 18;12(7):
pubmed: 35884338
Sensors (Basel). 2017 Jun 25;17(7):
pubmed: 28672828
Biosensors (Basel). 2023 Jan 17;13(2):
pubmed: 36831914
Opt Lett. 2012 Feb 15;37(4):644-6
pubmed: 22344134
Biosensors (Basel). 2022 Aug 05;12(8):
pubmed: 36004999
Biosensors (Basel). 2020 Oct 15;10(10):
pubmed: 33076308