Sparse synthetic aperture with Fresnel elements (S-SAFE) using digital incoherent holograms

Yuval Kashter, Yair Rivenson, Adrian Stern, Joseph Rosen

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Creating a large-scale synthetic aperture makes it possible to break the resolution boundaries dictated by the wave nature of light of common optical systems. However, their implementation is challenging, since the generation of a large size continuous mosaic synthetic aperture composed of many patterns is complicated in terms of both phase matching and time-multiplexing duration. In this study we present an advanced configuration for an incoherent holographic imaging system with super resolution qualities that creates a partial synthetic aperture. The new system, termed sparse synthetic aperture with Fresnel elements (S-SAFE), enables significantly decreasing the number of the recorded elements, and it is free from positional constrains on their location. Additionally, in order to obtain the best image quality we propose an optimal mosaicking structure derived on the basis of physical and numerical considerations, and introduce three reconstruction approaches which are compared and discussed. The superresolution capabilities of the proposed scheme and its limitations are analyzed, numerically simulated and experimentally demonstrated.

Original languageEnglish
Pages (from-to)20941-20960
Number of pages20
JournalOptics Express
Volume23
Issue number16
DOIs
StatePublished - 10 Aug 2015

Fingerprint

Dive into the research topics of 'Sparse synthetic aperture with Fresnel elements (S-SAFE) using digital incoherent holograms'. Together they form a unique fingerprint.

Cite this