One-dimensional photonic crystal used for relative humidity sensing based on the phase shift of the Bloch surface waves

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F22%3A10250617" target="_blank" >RIV/61989100:27240/22:10250617 - isvavai.cz</a>
Result on the web
<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12139/121391G/One-dimensional-photonic-crystal-used-for-relative-humidity-sensing-based/10.1117/12.2621434.short?SSO=1" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12139/121391G/One-dimensional-photonic-crystal-used-for-relative-humidity-sensing-based/10.1117/12.2621434.short?SSO=1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2621434" target="_blank" >10.1117/12.2621434</a>

Result language
angličtina
Original language name
One-dimensional photonic crystal used for relative humidity sensing based on the phase shift of the Bloch surface waves
Original language description
One of many possible applications of a one-dimensional photonic crystal (1DPhC) is sensing utilizing the Bloch surface wave (BSW). In this paper, we present a method of relative humidity (RH) sensing based on the phase shift of the BSW supported by a truncated 1DPhC represented by a multilayered structure. The structure is composed of six TiO2/SiO2 bilayers with a termination layer of TiO2. The BSW is excited by a total internal reflection of light in the Kretschmann configuration. A spectral interferometric technique is used to obtain a channeled spectrum due to projections of both reflected s and p polarized light waves. The phase is retrieved using a Windowed Fourier transform and spectral derivatives forming peaks are calculated. The sensing concept is based on tracking the derivative peak as a function of RH. A sensitivity to humidity of 0.028 nm/%RH and figure of merit of 0.0042 %RH-1 were determined.
Czech name
—
Czech description
—

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of SPIE - The International Society for Optical Engineering. Volume 12139
ISBN
978-1-5106-5154-8
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
6
Pages from-to
"121391G(1)"-"121391G(6)"
Publisher name
SPIE
Place of publication
Bellingham
Event location
Štrasburk
Event date
Apr 3, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000838015500051

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