Abstract

We comment on a recent Letter by Zhang et al. [Opt. Lett. 31, 1633 (2006)] in which the authors proposed a reconstruction algorithm for high-numerical-aperture (NA) holograms. Such an algorithm has been available for in-line holography for more than a decade. The authors’ “achievement” of high NA for digital in-line holography, $\mathrm{NA}=0.17$, is below what was reported already several years ago $(\mathrm{NA}=0.30)$ and is considerably lower than what is routinely achieved now. We present reconstructions of holograms acquired with NAs above 0.4 in which we show maximal achievable resolution.

© 2006 Optical Society of America

Reply to Comment on "Reconstruction algorithm for high-numerical-aperture holograms with diffraction-limited resolution"

Fucai Zhang, Giancarlo Pedrini, and Wolfgang Osten
Opt. Lett. 31(19) 2848-2848 (2006)

Reconstruction algorithm for high-numerical-aperture holograms with diffraction-limited resolution

Fucai Zhang, Giancarlo Pedrini, and Wolfgang Osten
Opt. Lett. 31(11) 1633-1635 (2006)

Diffraction-based modeling of high-numerical-aperture in-line lensless holograms

John F. Restrepo and Jorge Garcia-Sucerquia
Appl. Opt. 50(12) 1745-1752 (2011)

Reconstruction of high-resolution holographic microscopic images

M. Kanka, R. Riesenberg, and H. J. Kreuzer
Opt. Lett. 34(8) 1162-1164 (2009)

Submicrometer digital in-line holographic microscopy at 32 nm with high-order harmonics

Anne-Sophie Morlens, Julien Gautier, Gilles Rey, Philippe Zeitoun, Jean-Pascal Caumes, Marylène Kos-Rosset, Hamed Merdji, Sophie Kazamias, Kevin Cassou, and Marta Fajardo
Opt. Lett. 31(21) 3095-3097 (2006)