Phase retrieval through a one-dimensional ptychographic engine
Abstract
Ptychographic techniques are currently the subject of increasing scientific interest due to their capability to retrieve the complex transmission function of an object at very high resolution. However, they impose a substantial burden in terms of acquisition time and dimension of the scanned area, which limits the range of samples that can be studied. We have developed a new method that combines the ptychographic approach in one direction with Fresnel propagation in the other by employing a strongly asymmetric probe. This enables scanning the sample in one direction only, substantially reducing exposure times while covering a large field of view. This approach sacrifices ptychographic-related resolution in one direction, but removes any limitation on the probe dimension in the direction orthogonal to the scanning, enabling the scan of relatively large objects without compromising exposure times. (C) 2014 Optical Society of America
Autore Pugliese
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Vittoria F.A.; Diemoz P.C.; Endrizzi M.; De Caro L.; Wagner U.H.; Rau C.; Robinson I.K.; Olivo A.
Titolo volume/Rivista
Optics express
Anno di pubblicazione
2014
ISSN
1094-4087
ISBN
Non Disponibile
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Nessuna citazione
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Settori ERC
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Codici ASJC
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