About: Advantage of multi-mode sapphire optical fiber for evanescent-field SERS sensing

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	An unclad, multi-mode single crystal sapphire fiber was used as a platform, and immobilized colloidal Ag nanoparticles (NPs) were used as enabler, for evanescent-field fiber-optic sensing via surface-enhanced Raman scattering (SERS) of Rhodamine 6G (R6G) solution. The dependence of the measured Raman intensity on NP coverage density (to a maximum of 120 particles/μm2) as well as the coverage length (to a maximum of 6 cm) was investigated. We demonstrate the utility of SERS-active sapphire fibers for sensitive measurements (10-8 M R6G). We further reveal, with the aid of theoretical analysis, that multi-mode fiber offers a significant advantage compared to its single-mode counterpart because the former allows two orders of magnitude higher particle coverage density than the latter to maximize SERS benefit, while maintaining the dominance of Raman gain despite the competitive interplay of NP-induced absorption and scattering loss along the interaction path length An unclad, multi-mode single crystal sapphire fiber was used as a platform, and immobilized colloidal Ag nanoparticles (NPs) were used as enabler, for evanescent-field fiber-optic sensing via surface-enhanced Raman scattering (SERS) of Rhodamine 6G (R6G) solution. The dependence of the measured Raman intensity on NP coverage density (to a maximum of 120 particles/μm2) as well as the coverage length (to a maximum of 6 cm) was investigated. We demonstrate the utility of SERS-active sapphire fibers for sensitive measurements (10-8 M R6G). We further reveal, with the aid of theoretical analysis, that multi-mode fiber offers a significant advantage compared to its single-mode counterpart because the former allows two orders of magnitude higher particle coverage density than the latter to maximize SERS benefit, while maintaining the dominance of Raman gain despite the competitive interplay of NP-induced absorption and scattering loss along the interaction path length (en)
Title	Advantage of multi-mode sapphire optical fiber for evanescent-field SERS sensing Advantage of multi-mode sapphire optical fiber for evanescent-field SERS sensing (en)
skos:prefLabel	Advantage of multi-mode sapphire optical fiber for evanescent-field SERS sensing Advantage of multi-mode sapphire optical fiber for evanescent-field SERS sensing (en)
skos:notation	RIV/67985882:_____/14:00436258!RIV15-AV0-67985882
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(LH11038)
http://linked.open...iv/cisloPeriodika	20
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kaňka, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fotoniky a elektroniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	1757
http://linked.open...ai/riv/idVysledku	RIV/67985882:_____/14:00436258
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Fiber optics sensors; Backscattering; Nanomaterials (en)
http://linked.open.../riv/klicoveSlovo	Fiber optics sensors Backscattering Nanomaterials
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[681802036AD8]
http://linked.open...i/riv/nazevZdroje	Optics Letters
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Chemical and biochemical sensors based on functionalized micro- and nanostructured optical waveguides
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	39
http://linked.open...iv/tvurceVysledku	Chen, H. Kaňka, Jiří Du, H. Tian, F. Chi, J.
http://linked.open...ain/vavai/riv/wos	000343912000009
issn	0146-9592
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1364/OL.39.005822

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