Abstract
Long Period Fiber Gratings (LPFGs) are devices that can be exploited for several sensing applications [1], since they exhibit great potential in the detection of biomolecules and different chemical agents [2]. In fact, the presence of a layer of biomolecules involves a change in the refractive index and/or loss of the medium surrounding the LPFG and a consequent shift of the grating resonance wavelength, which can be exploited to perform an accurate detection, without the need of labeling.
© 2011 IEEE
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