Fig. 2 (IMAGE)

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Fig. 2

Caption

Fig. 2. (a) The schematic diagram of sub-units: a complete unit cell is composed of four sub-units, in which two identical purple sub-units control the propagation of LCP component and two identical yellow sub-units control the propagation of RCP component. (b) The required phase profile for RCP and LCP components and the schematic device, corresponding to the SEM images of sample in (c).

Credit

Jitao Li, Jingyu Liu, Zhen Yue, et al.

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