Ultrahigh sensitive silver trigonal chiral nanosensors

As chiral plasmonic nanostructures exhibit giant and extraordinary optical responses, these nanostructures have been mostly studied at optical sensing, and endless attempts have been begun to finding structures with a high value of sensitivity. Along with this goal, we report the sensitivity and LSP...

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Bibliographic Details
Published inOptik (Stuttgart) Vol. 224; p. 165663
Main Authors Azarian, A., Kabiri, A.
Format Journal Article
LanguageEnglish
Published Elsevier GmbH 01.12.2020
Subjects
Chiral
High sensitive
LSPR
Nanosensor
Trigonal
LSPR
Trigonal
High sensitive
Nanosensor
Chiral
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Summary:As chiral plasmonic nanostructures exhibit giant and extraordinary optical responses, these nanostructures have been mostly studied at optical sensing, and endless attempts have been begun to finding structures with a high value of sensitivity. Along with this goal, we report the sensitivity and LSPR properties of the Ag trigonal nano- chiral. Obtained results show that plasmon bands have the aspect of the dark plasmon modes in the range of 200 < λ < 2000 nm. Among these plasmon bands, we find the unusual bands with an ultra-high value of sensitivity (1346 nm/ RIU). This band shows high sensitivity to the radius of the nano- chiral and medium refractive index, which presents considerable potentials in the applications of LSPR sensing.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2020.165663