One-dimensional photonic crystal for Bloch surface waves and radiation modes-based sensing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F19%3A10242537" target="_blank" >RIV/61989100:27240/19:10242537 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/19:10242537 RIV/61989100:27740/19:10242537

Výsledek na webu

<a href="https://www.osapublishing.org/ome/abstract.cfm?uri=ome-9-10-4009" target="_blank" >https://www.osapublishing.org/ome/abstract.cfm?uri=ome-9-10-4009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OME.9.004009" target="_blank" >10.1364/OME.9.004009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

One-dimensional photonic crystal for Bloch surface waves and radiation modes-based sensing

Popis výsledku v původním jazyce

We report on a one-dimensional photonic crystal (1DPhC) represented by a multilayer structure used for a surface plasmon-like sensing based on Bloch surface waves and radiation modes employing a structure comprising a glass substrate and four bilayers of TiO2/SiO2 with a termination layer of TiO2. We model the reflectance responses in the Kretschmann configuration with a coupling prism made of BK7 glass and express the reflectances for both (s and p) polarizations in the spectral domain for various angles of incidence to show that a sharp dip associated with the Bloch surface wave (BSW) excitation is obtained in p polarization when an external medium (analyte) is air. For s-polarized wave BSW is not excited and a shallow dip associated with the guided mode excitation is obtained for a liquid analyte (water). For decreasing angle of incidence, the dip depth is substantially increased, and resonance thus obtained is comparable in magnitude with resonance commonly exhibited by SPR-based sensors. In addition, we revealed that the resonances in s-polarization are obtained for other analytes. The surface plasmon-like sensing concept was verified experimentally in the Kretschmann configuration for the guided mode transformed into the radiation mode with a negative and constant sensitivity of -169 nm/RIU, and a detection limit of 5.9 x 10(-5) RIU.

Název v anglickém jazyce

One-dimensional photonic crystal for Bloch surface waves and radiation modes-based sensing

Popis výsledku anglicky

We report on a one-dimensional photonic crystal (1DPhC) represented by a multilayer structure used for a surface plasmon-like sensing based on Bloch surface waves and radiation modes employing a structure comprising a glass substrate and four bilayers of TiO2/SiO2 with a termination layer of TiO2. We model the reflectance responses in the Kretschmann configuration with a coupling prism made of BK7 glass and express the reflectances for both (s and p) polarizations in the spectral domain for various angles of incidence to show that a sharp dip associated with the Bloch surface wave (BSW) excitation is obtained in p polarization when an external medium (analyte) is air. For s-polarized wave BSW is not excited and a shallow dip associated with the guided mode excitation is obtained for a liquid analyte (water). For decreasing angle of incidence, the dip depth is substantially increased, and resonance thus obtained is comparable in magnitude with resonance commonly exhibited by SPR-based sensors. In addition, we revealed that the resonances in s-polarization are obtained for other analytes. The surface plasmon-like sensing concept was verified experimentally in the Kretschmann configuration for the guided mode transformed into the radiation mode with a negative and constant sensitivity of -169 nm/RIU, and a detection limit of 5.9 x 10(-5) RIU.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Optical Materials Express

ISSN

2159-3930

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

4009-4022

Kód UT WoS článku

000488613600012

EID výsledku v databázi Scopus

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