Resolution gain in space-time digital holography by self-assembling of the object frequencies

Optics Letters
Vittorio BiancoPietro Ferraro

Abstract

Space-time digital holography (STDH) exploits the object motion to record the hologram in a hybrid ST domain. This representation adds new capabilities to conventional DH, e.g., unlimited field of view and variable phase shifting. This is the best candidate for imaging biological samples flowing in microfluidic channels. Here, we show that STDH is able to improve the spatial resolution as well. Different from other super-resolution approaches, stitching between holograms or their spectra is no longer required. Moreover, we introduce a new oblique STDH modality to record and process hybrid ST representations. This allows improving resolution in 2D with one single object scan, paving the way to the use of STDH for super-resolution imaging onboard microfluidic devices.

References

Sep 27, 2001·Proceedings of the National Academy of Sciences of the United States of America·W XuH J Kreuzer
Nov 23, 2007·Optics Letters·Jürgen H Massig
Jul 3, 2008·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Pascal Picart, Julien Leval
Oct 17, 2008·Optics Letters·Caojin YuanHaitao Liu
Aug 31, 2010·Journal of Biomedical Optics·Vicente Micó, Zeev Zalevsky
Jan 12, 2011·Applied Optics·Yan Hao, Anand Asundi
Apr 27, 2012·Optics Express·Vicente MicóJavier García
Nov 15, 2016·Optics Letters·Vittorio BiancoPietro Ferraro
Apr 21, 2017·Cytometry. Part a : the Journal of the International Society for Analytical Cytology·Darina RoitshtainNatan T Shaked

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Citations

Sep 17, 2021·Light, Science & Applications·Zhe WangPietro Ferraro

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