Open AccessSpatio-temporal scanning modality for synthesizing interferograms and digital holograms
Author(s) -
Vittorio Bianco,
Melania Paturzo,
Pietro Ferraro
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.022328
Subject(s) - digital holography , computer science , holography , optics , pixel , computer vision , interferometry , modality (human–computer interaction) , phase (matter) , artificial intelligence , feature (linguistics) , holographic interferometry , noise (video) , object (grammar) , phase retrieval , spatial frequency , phase imaging , physics , image (mathematics) , fourier transform , linguistics , philosophy , quantum mechanics , microscopy
We investigate the spatio-temporal scanning of a single-pixel row for building up synthetic interferograms or digital holograms, shifted each other of a desired phase step. This unusual recording modality exploits the object movement to synthesize interferograms with extended Field of View and improved noise contrast. We report the theoretical formulation of the synthetizing recording process and experimental evidence of various cases demonstrating quantitative phase retrieval by adopting this intrinsic phase-shifting procedure. The proposed method could be particularly suited in all cases where the object shift is an intrinsic feature of the investigated system, as e.g. in microfluidics imaging.