Details
| Original language | English |
|---|---|
| Article number | 2195 |
| Journal | Sensors (Switzerland) |
| Volume | 19 |
| Issue number | 9 |
| Publication status | Published - 1 May 2019 |
Abstract
In this article, we present a simple and intuitive approach to create a handheld optoacoustic setup for near field measurements. A single piezoelectric transducer glued in between two sheets of polymethyl methacrylate (PMMA) facilitates nearfield depth profiling of layered media. The detector electrodes are made of indium tin oxide (ITO) which is both electrically conducting as well as optically transparent, enabling an on-axis illumination through the detector. By mapping the active detector area, we show that it matches the design form precisely. We also present a straightforward approach to determine the instrument response function, which allows to obtain the original pressure profile arriving at the detector. To demonstrate the validity of this approach, the measurement on a simple test sample is deconvolved with the instrument response function and compared to simulation results. Except for the sputter instrumentation, all required materials and instruments as well as the tools needed to create such a setup are available to standard scientific laboratories.
Keywords
- Acoustic near field, Handheld, Optoacoustics, Transparent detector
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- Electrical and Electronic Engineering
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In: Sensors (Switzerland), Vol. 19, No. 9, 2195, 01.05.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Single transparent piezoelectric detector for optoacoustic sensing—design and signal processing
AU - Blumenröther, Elias
AU - Melchert, Oliver
AU - Kanngießer, Jonas
AU - Wollweber, Merve
AU - Roth, Bernhard
N1 - Funding information: This work was supported by the German Federal Ministry of Education and Research (BMBF) within the VIP-project MeDiOO (grant no. 03V0826) and the VolkswagenStiftung within the “Niedersächsisches Vorab” program in the framework of the project “Hybrid Numerical Optics” (HYMNOS; grant no. ZN 3061). O.M. and B.R. acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453).
PY - 2019/5/1
Y1 - 2019/5/1
N2 - In this article, we present a simple and intuitive approach to create a handheld optoacoustic setup for near field measurements. A single piezoelectric transducer glued in between two sheets of polymethyl methacrylate (PMMA) facilitates nearfield depth profiling of layered media. The detector electrodes are made of indium tin oxide (ITO) which is both electrically conducting as well as optically transparent, enabling an on-axis illumination through the detector. By mapping the active detector area, we show that it matches the design form precisely. We also present a straightforward approach to determine the instrument response function, which allows to obtain the original pressure profile arriving at the detector. To demonstrate the validity of this approach, the measurement on a simple test sample is deconvolved with the instrument response function and compared to simulation results. Except for the sputter instrumentation, all required materials and instruments as well as the tools needed to create such a setup are available to standard scientific laboratories.
AB - In this article, we present a simple and intuitive approach to create a handheld optoacoustic setup for near field measurements. A single piezoelectric transducer glued in between two sheets of polymethyl methacrylate (PMMA) facilitates nearfield depth profiling of layered media. The detector electrodes are made of indium tin oxide (ITO) which is both electrically conducting as well as optically transparent, enabling an on-axis illumination through the detector. By mapping the active detector area, we show that it matches the design form precisely. We also present a straightforward approach to determine the instrument response function, which allows to obtain the original pressure profile arriving at the detector. To demonstrate the validity of this approach, the measurement on a simple test sample is deconvolved with the instrument response function and compared to simulation results. Except for the sputter instrumentation, all required materials and instruments as well as the tools needed to create such a setup are available to standard scientific laboratories.
KW - Acoustic near field
KW - Handheld
KW - Optoacoustics
KW - Transparent detector
UR - http://www.scopus.com/inward/record.url?scp=85066061645&partnerID=8YFLogxK
U2 - 10.3390/s19092195
DO - 10.3390/s19092195
M3 - Article
C2 - 31083637
AN - SCOPUS:85066061645
VL - 19
JO - Sensors (Switzerland)
JF - Sensors (Switzerland)
SN - 1424-8220
IS - 9
M1 - 2195
ER -