Vortex-enhanced coherent-illumination phase diversity for phase retrieval in coherent imaging systems
Por:
Echeverri-Chacón, S., Restrepo, R., Cuartas-Vélez, C., Uribe-Patarroyo, N.
Publicada:
15 abr 2016
Categoría:
Atomic and Molecular Physics, and Optics
Resumen:
We propose a phase-retrieval method based on the numerical optimization
of a new objective function using coherent phase-diversity images as
inputs for the characterization of aberrations in coherent imaging
systems. By employing a spatial light modulator to generate
multiple-order spiral phase masks as diversities, we obtain an increase
in the accuracy of the retrieved phase compared with similar
state-of-the-art phase-retrieval techniques that use the same number of
input images. We present simulations that show a consistent advantage of
our technique, and experimental validation where our implementation is
used to characterize a highly aberrated 4F optical system. (C) 2016
Optical Society of America
Filiaciones:
Echeverri-Chacón, S.:
Applied Optics Group, Universidad EAFIT, Carrera 49#7 Sur-50, Medellín, Colombia
Restrepo, R.:
Applied Optics Group, Universidad EAFIT, Carrera 49#7 Sur-50, Medellín, Colombia
Cuartas-Vélez, C.:
Applied Optics Group, Universidad EAFIT, Carrera 49#7 Sur-50, Medellín, Colombia
Uribe-Patarroyo, N.:
Wellman Center for Photomedicine, Harvard Medical School, Massachusetts General Hospital, 40 Blossom Street, Boston, MA, United States
Green Accepted, Green
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