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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of SPIE - The International Society for Optical Engineering. Volume 12139

ISBN

978-1-5106-5154-8

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

6

Strana od-do

"121391G(1)"-"121391G(6)"

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Štrasburk

Datum konání akce

3. 4. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000838015500051