Journal of the European Optical Society - Rapid publications, Vol 2 (2007)

High sensitivity photonic crystal pressure sensor

D. Biallo, M. De Sario, A. D'Orazio, V. Marrocco, V. Petruzzelli, M. A. Vincenti, F. Prudenzano, T. Stomeo, M. Grande, G. Visimberga, R. Cingolani, M De Vittorio


A two-dimensional photonic crystal microcavity coupled with a waveguide is proposed to realise a high sensitive force sensor, designed on a GaAs membrane. A theoretical model is developed to evaluate the change of the refractive index induced by the application of the force onto a sensing surface. A linear calibration curve is obtained relating the resonant drop position to the applied force.

© The Authors. All rights reserved. [DOI: 10.2971/jeos.2007.07017]

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