Abstract

The resolution of the reconstructed wave by a phase-retrieval method using a volume-speckle field depends on the aperture defined by the size of the CCD array. The use of a larger aperture is introduced by measuring the speckle field at two different positions in the transverse plane and stitching the measurements together. Improvements in the quality of reconstructions are demonstrated experimentally and by computer simulations. Undesirable effects of camera tilt on the quality of reconstructions from synthetic aperture intensity measurements are experimentally observed and corrected.

© 2007 Optical Society of America

Shape and deformation measurements of 3D objects using volume speckle field and phase retrieval

Arun Anand, Vani K Chhaniwal, Percival Almoro, Giancarlo Pedrini, and Wolfgang Osten
Opt. Lett. 34(10) 1522-1524 (2009)

Complete wavefront reconstruction using sequential intensity measurements of a volume speckle field

Percival Almoro, Giancarlo Pedrini, and Wolfgang Osten
Appl. Opt. 45(34) 8596-8605 (2006)

Enhanced deterministic phase retrieval using a partially developed speckle field

Percival F. Almoro, Laura Waller, Mostafa Agour, Claas Falldorf, Giancarlo Pedrini, Wolfgang Osten, and Steen G. Hanson
Opt. Lett. 37(11) 2088-2090 (2012)

Wavefront sensing with random amplitude mask and phase retrieval

Arun Anand, Giancarlo Pedrini, Wolfgang Osten, and Percival Almoro
Opt. Lett. 32(11) 1584-1586 (2007)

Random phase plate for wavefront sensing via phase retrieval and a volume speckle field

Percival F. Almoro and Steen G. Hanson
Appl. Opt. 47(16) 2979-2987 (2008)