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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F14%3A00436258" target="_blank" >RIV/67985882:_____/14:00436258 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1364/OL.39.005822" target="_blank" >http://dx.doi.org/10.1364/OL.39.005822</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OL.39.005822" target="_blank" >10.1364/OL.39.005822</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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/?m2) 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

Název v anglickém jazyce

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

Popis výsledku anglicky

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/?m2) 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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/LH11038" target="_blank" >LH11038: Chemické a biochemické senzory založené na funkcionalizovaných mikro- a nanostrukturovaných optických vlnovodech</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optics Letters

ISSN

0146-9592

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

5822-5825

Kód UT WoS článku

000343912000009

EID výsledku v databázi Scopus

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