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Figure 7 | EPJ Quantum Technology

Figure 7

From: Anomalous diffraction of matter waves with minimal quantum metasurfaces

Figure 7

Trajectories of various designs (with \(a=2.5\text{ nm}\), Fig. 3(a), support maximal anomalous reflection) response on the plane of Snell’s (horizontal) and first anomalous (vertical) diffraction as the duty cycle \(a/b\) perturbs by \(\pm 10\%\) around the optimal value. (a) Loci on \((\rho _{0}, \rho _{-1})\) plane and (b) Loci on \((\tau _{0}, \tau _{-1})\) plane. Markers denote the optimal operation point and dashed lines indicate the maximum quantity, equaling to one

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