Abstract

We demonstrate experimentally that correct phase imaging without 2π ambiguity is obtainable in digital holography by using a multiwavelength approach in the microscope configuration. We describe a general approach for removing chromatic aberrations and for controlling the pixel size of the reconstructed phase image in multiwavelength digital holography when the Fourier transform method is adopted for the numerical reconstruction of digital holograms. The retrieved phase is affected by the unavoidable, unwanted chromatic aberration. The correct phase can be obtained by evaluating the phase from the reference holograms reconstructed at different wavelengths to compensate for the chromatic aberration.

© 2005 Optical Society of America

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References

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2005 (2)

2004 (4)

P. Ferraro, S. DeNicola, A. Finizio, G. Pierattini, and G. Coppola, Appl. Phys. Lett. 85, 2709 (2004).
[CrossRef]

F. Zhang, I. Yamaguchi, and L. P. Yaroslavsky, Opt. Lett. 29, 1668 (2004).
[CrossRef] [PubMed]

G. Coppola, P. Ferraro, M. Iodice, S. De Nicola, A. Finizio, and S. Grilli, Meas. Sci. Technol. 15, 529 (2004).
[CrossRef]

P. Ferraro, S. De Nicola, G. Coppola, A. Finizio, D. Alfieri, and G. Pierattini, Opt. Lett. 29, 854 (2004).
[CrossRef] [PubMed]

2003 (1)

2002 (4)

2001 (1)

1994 (1)

Alfieri, D.

Baumbach, T.

Colomb, T.

Coppola, G.

G. Coppola, P. Ferraro, M. Iodice, S. De Nicola, A. Finizio, and S. Grilli, Meas. Sci. Technol. 15, 529 (2004).
[CrossRef]

P. Ferraro, S. De Nicola, G. Coppola, A. Finizio, D. Alfieri, and G. Pierattini, Opt. Lett. 29, 854 (2004).
[CrossRef] [PubMed]

P. Ferraro, S. DeNicola, A. Finizio, G. Pierattini, and G. Coppola, Appl. Phys. Lett. 85, 2709 (2004).
[CrossRef]

Cuche, E.

Dakoff, A.

de Groot, P. J.

De Nicola, S.

DeNicola, S.

P. Ferraro, S. DeNicola, A. Finizio, G. Pierattini, and G. Coppola, Appl. Phys. Lett. 85, 2709 (2004).
[CrossRef]

Depeursinge, C.

Emryy, Y.

Ferrao, P.

Ferraro, P.

P. Ferraro, S. DeNicola, A. Finizio, G. Pierattini, and G. Coppola, Appl. Phys. Lett. 85, 2709 (2004).
[CrossRef]

G. Coppola, P. Ferraro, M. Iodice, S. De Nicola, A. Finizio, and S. Grilli, Meas. Sci. Technol. 15, 529 (2004).
[CrossRef]

P. Ferraro, S. De Nicola, G. Coppola, A. Finizio, D. Alfieri, and G. Pierattini, Opt. Lett. 29, 854 (2004).
[CrossRef] [PubMed]

S. Grilli, P. Ferraro, S. De Nicola, A. Finizio, G. Pierattini, and R. Meucci, Opt. Express 9, 294 (2001).
[CrossRef] [PubMed]

Finizio, A.

Gass, J.

Grilli, S.

G. Coppola, P. Ferraro, M. Iodice, S. De Nicola, A. Finizio, and S. Grilli, Meas. Sci. Technol. 15, 529 (2004).
[CrossRef]

S. Grilli, P. Ferraro, S. De Nicola, A. Finizio, G. Pierattini, and R. Meucci, Opt. Express 9, 294 (2001).
[CrossRef] [PubMed]

Hong, S.-H.

Iodice, M.

G. Coppola, P. Ferraro, M. Iodice, S. De Nicola, A. Finizio, and S. Grilli, Meas. Sci. Technol. 15, 529 (2004).
[CrossRef]

Javidi, B.

Juptner, W.

Juptner, W. P.O.

U. Schnars and W. P.O. Juptner, Meas. Sci. Technol. 13, R85 (2002).
[CrossRef]

Kato, J.

Kim, M. K.

Magistretti, P. J.

Marquet, P.

Matsumura, T.

Meucci, R.

Osten, W.

Pedrini, G.

Pierattini, G.

Rappaz, B.

Schnars, U.

U. Schnars and W. P.O. Juptner, Meas. Sci. Technol. 13, R85 (2002).
[CrossRef]

Tiziani, H. J.

Yamaguchi, I.

Yaroslavsky, L. P.

Zhang, F.

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Figures (3)

Fig. 1
Fig. 1

Digital holography off-axis set-up with two wavelengths. WP, wave plate; PBS, polarizing beam splitter; BE, beam expander; M, mirror; BS, beam splitter; MO, microscope objective; S, substrate.

Fig. 2
Fig. 2

(a). Digital off-axis hologram recorded at 632 nm. (b) Amplitude reconstruction of the digital hologram in (a) after the padding operation. (c) Wrapped phase map in the presence of chromatic aberration at coarse equivalent wavelength λ 12 = λ 1 λ 2 λ 1 λ 2 . (d) Wrapped phase map of chromatic aberration obtained by subtracting the two reference (red and green) holograms.

Fig. 3
Fig. 3

(a), (b) Wrapped aberration-compensated phase maps reconstructed from the hologram recorded at (a) the red wavelength and (b) the green wavelength. (c) Wrapped aberration-compensated difference phase map at the equivalent beat wavelength. (d), (e), (f) Detail of depth profile along a single line of the maps shown in (a), (b), and (c), respectively.

Equations (2)

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N 2 = N 1 ( λ 2 λ 1 ) ,
Δ φ ( x , y ) = Arg [ ϕ 1 ( x , y ) R 2 ( x , y ) ϕ 2 ( x , y ) R 1 ( x , y ) ] ,

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