PHOTONIC SENSING METHOD AND DEVICE

摘要

The invention relates to a method and a device for photonic sensing based on periodical dielectric photonic forbidden band structures in which the sensing process is carried out by the measurement of the variation of the amplitude of the signal at the output of the device. The amplitude variation is a result of a variation in the refractive index of the structure, as a consequence of the presence of the substances to be sensed. The invention is especially characterised by its simplicity in the sensing process performed by direct measurement of the output amplitude, without the need to carry out a frequency scanning, its high level of integration, which enables a smaller design, and its adaptability to dielectric structures having one, two and three dimensions.