Spatio-temporal scanning modality for synthesizing interferograms and digital holograms

Year: 2014

Authors: Bianco V., Paturzo M., Ferraro P.

Autors Affiliation: CNR Istituto Nazionale di Ottica — Sezione di Napoli, Via Campi Flegrei, 34 80078 Pozzuoli (Napoli), Italy

Abstract: 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. (C) 2014 Optical Society of America

Journal/Review: OPTICS EXPRESS

Volume: 22 (19)      Pages from: 22328  to: 22339

More Information: This work was supported by Progetto Bandiera \”La Fabbrica del Futuro\” in the framework of the funded project \”Plastic lab-on-chips for the optical manipulation of single cells\” (PLUS) and by Progetto \”Smart Cities\” – Aquasystem: \”Procedure e tecnologie innovative per una gestione pianificata ed integrata delle risorse idriche, l\’ottizzazione energetica ed il controllo della qualita nel Ciclo Integrato delle Acque\”.
KeyWords: interferometric imaging; digital holography; phase shift; phase retrieval; synthetic-aperture
DOI: 10.1364/OE.22.022328

Citations: 28
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