Ultrahigh-sensitive plasmonic sensing of gas using a two-dimensional dielectric grating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F19%3A10243155" target="_blank" >RIV/61989100:27240/19:10243155 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-22-5602" target="_blank" >https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-22-5602</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OL.44.005602" target="_blank" >10.1364/OL.44.005602</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultrahigh-sensitive plasmonic sensing of gas using a two-dimensional dielectric grating

Popis výsledku v původním jazyce

We demonstrate an ultrahigh-sensitive plasmonic sensing of gas, employing a two-dimensional (2D) dielectric grating fabricated by laser interference lithography. The 2D grating was designed with the period of 500 nm and prepared in an AZ1505 photoresist layer on a gold film of 20 nm thickness deposited on a fused silica glass substrate. The surface plasmon resonance (SPR) in the Kretschmann configuration with spectral interrogation was utilized to measure the response of the sensor to vapors of aqueous solution of ethanol. Based on measurement of the gas refractive indices with the reference Au/Cr/SF10 sample, the resonance wavelength dependence was obtained. The SPR response of the structure in a spectral range of 1.68-1.85 mu m with a sensitivity of 8200-111,000 nm/RIU was revealed. The sensor provides significantly higher sensitivity in comparison to conventional and grating-based SPR sensors.

Název v anglickém jazyce

Ultrahigh-sensitive plasmonic sensing of gas using a two-dimensional dielectric grating

Popis výsledku anglicky

We demonstrate an ultrahigh-sensitive plasmonic sensing of gas, employing a two-dimensional (2D) dielectric grating fabricated by laser interference lithography. The 2D grating was designed with the period of 500 nm and prepared in an AZ1505 photoresist layer on a gold film of 20 nm thickness deposited on a fused silica glass substrate. The surface plasmon resonance (SPR) in the Kretschmann configuration with spectral interrogation was utilized to measure the response of the sensor to vapors of aqueous solution of ethanol. Based on measurement of the gas refractive indices with the reference Au/Cr/SF10 sample, the resonance wavelength dependence was obtained. The SPR response of the structure in a spectral range of 1.68-1.85 mu m with a sensitivity of 8200-111,000 nm/RIU was revealed. The sensor provides significantly higher sensitivity in comparison to conventional and grating-based SPR sensors.

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

<a href="/cs/project/EF17_048%2F0007399" target="_blank" >EF17_048/0007399: Nové kompozitní materiály pro environmentální aplikace</a><br>

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

Optics Letters

ISSN

0146-9592

e-ISSN

—

Svazek periodika

44

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

5602-5605

Kód UT WoS článku

000496981500055

EID výsledku v databázi Scopus

2-s2.0-85075208482