Abstract
| Language | English |
|---|---|
| Title of host publication | Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017 |
| Editors | Jerome P. Lynch |
| Place of Publication | Bellingham WA |
| Number of pages | 9 |
| DOIs | |
| Publication status | Published - 12 Apr 2017 |
| Event | Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017 - Portland, United States Duration: 25 Mar 2017 → 25 Mar 2017 |
Publication series
| Name | Proceedings of SPIE |
|---|---|
| Publisher | Society of Photo-Optical Instrumentation Engineers |
| Volume | 10168 |
| ISSN (Print) | 0277-786X |
Conference
| Conference | Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017 |
|---|---|
| Country | United States |
| City | Portland |
| Period | 25/03/17 → 25/03/17 |
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Keywords
- structural health monitoring
- photonic crystals
- crystals
- finite-difference time-domain method
- light-matter interactions
- matrices
- transmittance
- visible radiance
- maxwell equations
- reflectivity
Cite this
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Finite difference analysis and experimental validation of 3D photonic crystals for structural health monitoring. / Piccolo, Valentina; Chiappini, Andrea; Vaccari, Alessandro; Lesina, Antonino Calà ; Ferrari, Maurizio; Deseri, Luca; Perry, Marcus; Zonta, Daniele.
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017. ed. / Jerome P. Lynch. Bellingham WA, 2017. 101681E (Proceedings of SPIE; Vol. 10168).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
TY - GEN
T1 - Finite difference analysis and experimental validation of 3D photonic crystals for structural health monitoring
AU - Piccolo, Valentina
AU - Chiappini, Andrea
AU - Vaccari, Alessandro
AU - Lesina, Antonino Calà
AU - Ferrari, Maurizio
AU - Deseri, Luca
AU - Perry, Marcus
AU - Zonta, Daniele
N1 - Piccolo, V., Chiappini, A., Vaccari, A., Lesina, A. C., Ferrari, M., Deseri, L., ... Zonta, D. (2017). "Finite difference analysis and experimental validation of 3D photonic crystals for structural health monitoring", In Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, J. P. Lynch (Ed.), Proceedings of SPIE Vol. 10168, 101681E 2017. Copyright 2017 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. https://doi.org/10.1117/12.2263975
PY - 2017/4/12
Y1 - 2017/4/12
N2 - In this work, we validate the behavior of 3D Photonic Crystals for Structural Health Monitoring applications. A Finite Difference Time Domain (FDTD) analysis has been performed and compared to experimental data. We demonstrate that the photonic properties of a crystal (comprised of sub-micrometric polystyrene colloidal spheres embedded in a PDMS matrix) change as a function of the axial strain applied to a rubber substrate. The change in the reflected wavelength, detected through our laboratory experiments and equivalent to a visible change in crystal color, is assumed to be caused by changes in the interplanar spacing of the polystyrene beads. This behavior is captured by our full wave 3D FDTD model. This contains different wavelengths in the visible spectrum and the wave amplitudes of the reflected and transmitted secondary beams are then computed. A change in the reflectance or transmittance is observed at every programmed step in which we vary the distance between the spheres. These investigations are an important tool to predict, study and validate our understanding of the behavior of this highly complex physical system. In this context, we have developed a versatile and robust parallelized code, able to numerically model the interaction of light with matter, by directly solving Maxwell's equations in their strong form. The ability to describe the physical behavior of such systems is an important and fundamental capability which will aid the design and validation of innovative photonic sensors.
AB - In this work, we validate the behavior of 3D Photonic Crystals for Structural Health Monitoring applications. A Finite Difference Time Domain (FDTD) analysis has been performed and compared to experimental data. We demonstrate that the photonic properties of a crystal (comprised of sub-micrometric polystyrene colloidal spheres embedded in a PDMS matrix) change as a function of the axial strain applied to a rubber substrate. The change in the reflected wavelength, detected through our laboratory experiments and equivalent to a visible change in crystal color, is assumed to be caused by changes in the interplanar spacing of the polystyrene beads. This behavior is captured by our full wave 3D FDTD model. This contains different wavelengths in the visible spectrum and the wave amplitudes of the reflected and transmitted secondary beams are then computed. A change in the reflectance or transmittance is observed at every programmed step in which we vary the distance between the spheres. These investigations are an important tool to predict, study and validate our understanding of the behavior of this highly complex physical system. In this context, we have developed a versatile and robust parallelized code, able to numerically model the interaction of light with matter, by directly solving Maxwell's equations in their strong form. The ability to describe the physical behavior of such systems is an important and fundamental capability which will aid the design and validation of innovative photonic sensors.
KW - structural health monitoring
KW - photonic crystals
KW - crystals
KW - finite-difference time-domain method
KW - light-matter interactions
KW - matrices
KW - transmittance
KW - visible radiance
KW - maxwell equations
KW - reflectivity
U2 - 10.1117/12.2263975
DO - 10.1117/12.2263975
M3 - Conference contribution book
SN - 9781510608214
T3 - Proceedings of SPIE
BT - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017
A2 - Lynch, Jerome P.
CY - Bellingham WA
ER -