Journal of Sensors / 2009 / Article / Fig 11

Review Article

Surface Plasmon Resonance-Based Fiber and Planar Waveguide Sensors

Figure 11

A dual LPG-based SPR sensor. The first LPG couples a guided mode to a particular cladding mode which has a small SPP component (the hybrid mode). The second step is the recoupling of the hybrid surface Plasmon wave back to the guided mode at the output of the fibre. A phase change is imparted by the introduction of the analyte, which detunes the coupling at the second LPG, resulting in an amplitude change at the output [27].
645162.fig.0011

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.