Narrow Tamm resonances in one-dimensional photonic crystals employed in sensor applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F23%3A00574799" target="_blank" >RIV/68081731:_____/23:00574799 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27240/23:10252832

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0030399223006904" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0030399223006904</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optlastec.2023.109797" target="_blank" >10.1016/j.optlastec.2023.109797</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Narrow Tamm resonances in one-dimensional photonic crystals employed in sensor applications

Popis výsledku v původním jazyce

One-dimensional photonic crystals (1DPhCs) combined with a thin Au layer are designed to show up the Tamm resonances with potential sensor applications. For two 1DPhCs comprising six bi-layers of TiO2/SiO2 with a termination layer, the Tamm resonances are revealed within different band gaps. The first structure is characterized by a wide band gap over the visible (VIS) and near-infrared (NIR) spectral range and the Tamm resonance is supported at the normal incidence of light from both the substrate and Au sides with the resonance depth and width depending on the thickness of the Au layer. The second structure is characterized by band gaps in both the VIS and NIR spectral ranges and deep Tamm resonances for the Au layer of a 20 nm thickness are revealed. The theoretical results for both the structures are validated by experimental data, and for the first structure, the Tamm resonance dip as narrow as 6.7 nm is resolved. The second structure is utilized in relative humidity (RH) sensing due to a porous termination layer of the 1DPhC, and it is revealed that the new Tamm resonance-based sensor outperforms some optical RH sensors in both the sensitivity and figure of merit. Tamm resonance-based sensors along with the their main advantage in coupling-prism-free operation thus represent an effective alternative to other optical sensors, such as surface plasmon resonance-and Bloch surface wave-based ones.

Název v anglickém jazyce

Narrow Tamm resonances in one-dimensional photonic crystals employed in sensor applications

Popis výsledku anglicky

One-dimensional photonic crystals (1DPhCs) combined with a thin Au layer are designed to show up the Tamm resonances with potential sensor applications. For two 1DPhCs comprising six bi-layers of TiO2/SiO2 with a termination layer, the Tamm resonances are revealed within different band gaps. The first structure is characterized by a wide band gap over the visible (VIS) and near-infrared (NIR) spectral range and the Tamm resonance is supported at the normal incidence of light from both the substrate and Au sides with the resonance depth and width depending on the thickness of the Au layer. The second structure is characterized by band gaps in both the VIS and NIR spectral ranges and deep Tamm resonances for the Au layer of a 20 nm thickness are revealed. The theoretical results for both the structures are validated by experimental data, and for the first structure, the Tamm resonance dip as narrow as 6.7 nm is resolved. The second structure is utilized in relative humidity (RH) sensing due to a porous termination layer of the 1DPhC, and it is revealed that the new Tamm resonance-based sensor outperforms some optical RH sensors in both the sensitivity and figure of merit. Tamm resonance-based sensors along with the their main advantage in coupling-prism-free operation thus represent an effective alternative to other optical sensors, such as surface plasmon resonance-and Bloch surface wave-based ones.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Optics and Laser Technology

ISSN

0030-3992

e-ISSN

1879-2545

Svazek periodika

167

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

109797

Kód UT WoS článku

001044184000001

EID výsledku v databázi Scopus

2-s2.0-85164693524