Abstract
We discuss the possible use of photonic crystals as strain sensors. We demonstrate the feasible fabrication of a crystal having sub-micrometric polystyrene colloidal spheres in a PDMS matrix on a rubber substrate, and we demonstrate that the photonic properties change with substrate elongation according to theoretical prediction. The crystal's sensitivity to strain depends directly on interplanar spacing and on Poisson's ratio. To enhance the crystal strain resolution, we propose to fabricate photonic crystal slabs, which exhibit a high geometrical Poisson's ratio, and we investigate their mechanical behavior through non-linear Finite Element analysis and then, through an approximate optomechanical approach, the optical response.
Original language | English (US) |
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Title of host publication | 2016 18th International Conference on Transparent Optical Networks, ICTON 2016 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Volume | 2016-August |
ISBN (Electronic) | 9781509014675 |
DOIs | |
State | Published - Aug 23 2016 |
Event | 18th International Conference on Transparent Optical Networks, ICTON 2016 - Trento, Italy Duration: Jul 10 2016 → Jul 14 2016 |
Other
Other | 18th International Conference on Transparent Optical Networks, ICTON 2016 |
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Country/Territory | Italy |
City | Trento |
Period | 7/10/16 → 7/14/16 |
Keywords
- buckling
- nonlinear elasticity
- numerical analysis
- optical response
- photonic crystal slabs
- structural health monitoring
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials