Open AccessPhase-space approach to lensless measurements of optical field correlations
Author(s) -
Katelynn A. Sharma,
Thomas G. Brown,
Miguel A. Alonso
Publication year - 2016
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.24.016099
Subject(s) - optics , monochromatic color , aperture (computer memory) , phase retrieval , phase (matter) , physics , ptychography , amplitude , optical phase space , inverse problem , computer science , diffraction , mathematics , fourier transform , coherent states , mathematical analysis , squeezed coherent state , quantum mechanics , acoustics , quantum
We analyze and test a general approach for efficiently measuring space-variant partially coherent quasi-monochromatic fields using only amplitude masks and free propagation. A phase-space description is presented to analyze approaches of this type and understand their limitations. Three variants of the method are discussed and compared, the first using an aperture mask, the second employing both an obstacle (the exact inverse of the aperture) and a clear mask, and the last combining the previous two. We discuss the advantages and disadvantages of each option.