When I fuse the multi-single-multi fiber structure, coat it with silver film to stimulate the SPR phenomenon, and establish the transmission spectrum, I add water to the sensing area. The spectral line of the SPR transmission spectrum rises, but it should normally decrease. What is the reason? Thank you!
Han Jiachi
The SPR process can be considered as an energy transfer process in which part of the energy of the incident light is transferred to the surface plasmon wave. Since the intensity of the peak increases with the addition of water, therefore water promotes the SPR process. This may occur due to the participation of the nuclear quantum effect.
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