Comparison of different FT-based solutions: A(60 pix), B(30), C(30) and D(60) with different size of SB filter shown in pixels. Solutions (A, B) follow from Eq. (3) for single hologram, while new solutions (C, D) follow from Eq. (4) and require two fringe-shifted holograms. The fringe contrast in all holograms was set to be 30%. Notice that the best quality image in (D) was obtained from Eq.(8)) at maximal SB filter size |q max |≈q 0 equal to 'double resolution' at 60 pixels. The image (E) for Difference map Dmap¼ [phase(rec)À phase(ref)] is used to evaluate the quality of deviation for D(60) phase from ref. phase image for 'Si[110] dumbbells' in Fig. 3b. Parameter for Dmap (p ¼ π): Standard dev.¼ 0.094 and Variance ¼0.0089. Left panel of (E) is the line profile across this map showing residual noise ≤0.05 rad.

Contexts in source publication

Context 1

... Fig. 5 we compare four results (A, B, C, D) for Fourier- transformed side-band (FT-SB) solutions. Here solutions (A, B) calculated from a single hologram using Eq. (3) are compared with new (C, D) solutions made as difference of two shifted holograms by Eq. (4). The size of the SB filter mask shown in Fig. 3(d, f) also varies in Fig. 5(a-d) ...

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... Fig. 5 we compare four results (A, B, C, D) for Fourier- transformed side-band (FT-SB) solutions. Here solutions (A, B) calculated from a single hologram using Eq. (3) are compared with new (C, D) solutions made as difference of two shifted holograms by Eq. (4). The size of the SB filter mask shown in Fig. 3(d, f) also varies in Fig. 5(a-d) (60) Fig. ...

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... strong benefit of double-resolution EH solution is the recovery of very clear Amplitude image (Fig. 5, see D(60) solution for Einstein's portrait with Dmap Standard dev. ¼0.025 and Variance ¼0.00062), which has been a problem for many high- resolution holographic amplitude ...