Fig. 2 | Scientific Reports

Fig. 2

From: Self-healing spiral phase contrast imaging

Fig. 2

Images and characterization of the edge detector. (a) Sample appearance image. (b) POM image of the central photopatterning area in (a). Scale bar: 400 μm. (c) Liquid crystal director distribution in the central area in (b). Scale bar: 100 μm. (d) The edge detector PSF measurement setup. P1: polarizer 1, λ/4: quarter-wave plate, P2: polarizer 2. (e) The PSF image. Scale bar: 150 μm. (f) The normalized two-dimensional intensity distribution of the PSF image.

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