A. Piotrowska, A. Chiappini, A. Lukowiak, C. Armellini, A. Carpentiero, M. Mazzola, S. Varas, M. Marcinak, M. Ferrari, D. Zonta
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Strain-sensitive photonic crystals for sensing applications in structural health monitoring
A photonic crystal (PhC) is a periodic structure with periodicity comparable with the wavelength of light, having a photonic band gap and reflecting selectively only a band of the incident light. In this contribution, we discuss the possible use of PhCs as strain sensors, based on the observation that a distortion in the crystal structure produces a change in the reflected bandwidth.