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Figure 4
(a) The different path lengths for a photon from a single crystal plane; the path-length difference is given by the difference in the length of the solid arrows. (b) The variation in |AΩ|2, along Ω, equation (4)[link], with X = 0 and the PΩ included [equation (16a)[link]], for various lateral dimensions Lx. All the peaks have been normalized and the main graph has been averaged (except the peaks) to show the trend, and the inset indicates the actual complexity of the fringing. (c) The extension of (a) to multiple planes and how the combination of waves A and C will maintain a phase relationship by allowing x to vary, (d).

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ISSN: 2053-2733
Volume 70| Part 3| March 2014| Pages 257-282
doi:10.1107/S205327331400117X
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