Guided-Mode Resonance-Based Relative Humidity Sensing Employing a Planar Waveguide Structure
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F20%3A10246157" target="_blank" >RIV/61989100:27240/20:10246157 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1424-8220/20/23/6788" target="_blank" >https://www.mdpi.com/1424-8220/20/23/6788</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/s20236788" target="_blank" >10.3390/s20236788</a>
Alternative languages
Result language
angličtina
Original language name
Guided-Mode Resonance-Based Relative Humidity Sensing Employing a Planar Waveguide Structure
Original language description
In this paper, we present a new type of guided-mode resonance (GMR)-based sensor that utilizes a planar waveguide structure (PWS). We employed a PWS with an asymmetric three-layer waveguide structure consisting of substrate/Au/photoresist. The ellipsometric characterization of the structure layers, the simulated reflectance spectra, and optical field distributions under GMR conditions showed that multiple waveguide modes can be excited in the PWS. These modes can be used for refractive index sensing, and the theoretical analysis of the designed PWS showed a sensitivity to the refractive index up to 6600 nm per refractive index unit (RIU) and a figure of merit (FOM) up to 224 RIU-1. In response to these promising theoretical results, the PWS was used to measure the relative humidity (RH) of moist air with a sensitivity up to 0.141 nm/%RH and a FOM reaching 3.7 x 10(-3)%RH-1. The results demonstrate that this highly-sensitive and hysteresis-free sensor based on GMR has the potential to be used in a wide range of applications.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
<a href="/en/project/EF17_048%2F0007399" target="_blank" >EF17_048/0007399: New Composite Materials for Environmental Applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Sensors
ISSN
1424-3210
e-ISSN
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Volume of the periodical
20
Issue of the periodical within the volume
23
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
"6788(1)"-"6788(13)"
UT code for WoS article
000597457600001
EID of the result in the Scopus database
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