Correct self-assembling of spatial frequencies in super-resolution synthetic aperture digital holography

Abstract

Synthetic aperture enlargement is obtained, in lensless digital holography, by introducing a diffraction grating between the object and the CCD camera with the aim of getting super-resolution. We demonstrate here that the spatial frequencies are naturally self-assembled in the reconstructed image plane when the NA is increased synthetically at its maximum extent of three times. By this approach it possible to avoid the use of the grating transmission formula in the numerical reconstruction process, thus reducing significantly the noise in the final super-resolved image. Demonstrations are reported in 1D and 2D with an optical target and a biological sample, respectively.

© 2009 Optical Society of America

Synthetic aperture in terahertz in-line digital holography for resolution enhancement

Haochong Huang, Lu Rong, Dayong Wang, Weihua Li, Qinghua Deng, Bin Li, Yunxin Wang, Zhiqiang Zhan, Xuemin Wang, and Weidong Wu
Appl. Opt. 55(3) A43-A48 (2016)

High-resolution synthetic-aperture digital holography with digital phase and pupil correction

Abbie E. Tippie, Abhishek Kumar, and James R. Fienup
Opt. Express 19(13) 12027-12038 (2011)

Pixel super-resolution in digital holography by regularized reconstruction

C. Fournier, F. Jolivet, L. Denis, N. Verrier, E. Thiebaut, C. Allier, and T. Fournel
Appl. Opt. 56(1) 69-77 (2017)

Super-resolution in digital holography by a two-dimensional dynamic phase grating

M. Paturzo, F. Merola, S. Grilli, S. De Nicola, A. Finizio, and P. Ferraro
Opt. Express 16(21) 17107-17118 (2008)

Numerically correcting the joint misplacement of the sub-holograms in spatial synthetic aperture digital Fresnel holography

Hongzhen Jiang, Jianlin Zhao, Jianglei Di, and Chuan Qin
Opt. Express 17(21) 18836-18842 (2009)