Colloidal Photonic Crystals and their application in sensoristic field.

Piccolo V., Chiappini A., Armellini C., Vaccari A., Zonta D. , Ferrari M.

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Recently, mechanochromic sensors have been extensively investigated as responsive systems to deformations. In this contribution an overview of the different kind of elastomeric photonic crystals developed in our labs is reported, focusing the attention on the fabrication protocols, up to their working principles and to their main properties, meaning sensitivity and reproducibility. Specifically, the different optical sensors response as a function of the applied strain and different type of interrogation and detection sources will be deeply discussed. Finally, it will be shown how these structures can be seen as suitable tools for the development of low cost strain sensor systems.

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