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Figure 1

From: 3D imaging using scanning diffractometry

Figure 1

(a) The experimental setup for scanning OD; Source: low coherent LED, C: condenser, S: sample, MO: microscope objective, TPS: transparent phase step, h: height of the TPS, p: sample distance to MO, q: TPS distance to back aperture of MO, and d: TPS distance to camera. (b) Typical recorded diffraction pattern. (c) Cross-sectional profile along \(\overline{\rm{MN}}\) in panel (b) and the definition of parameters \(\mathcal {V}\) and \(\eta \).

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