Fig. 4 (IMAGE)
Caption
Fig. 4. (a) The schematic concept for the refractive index sensing. Placing additional medium in the propagation path will change the phase difference between LCP and RCP components. The refractive index is determined by detecting the change of polarization state in an output plane. (b) With the change of refractive index, the viewed polarization state in the z=8 mm plane rotates, where the propagation direction vertically points out of the paper. (c-d) Theoretical and simulation results of Prot vs. n.
Credit
Jitao Li, Jingyu Liu, Zhen Yue, et al.
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