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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Wavefront reconstruction by modal decomposition
Optics Express, Volume 20, No. 18, Year 2012
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Description
We propose a new method to determine the wavefront of a laser beam based on modal decomposition by computer-generated holograms. The hologram is encoded with a transmission function suitable for measuring the amplitudes and phases of the modes in real-time. This yields the complete information about the optical field, from which the Poynting vector and the wavefront are deduced. Two different wavefront reconstruction options are outlined: reconstruction from the phase for scalar beams, and reconstruction from the Poynting vector for inhomogeneously polarized beams. Results are compared to Shack-Hartmann measurements that serve as a reference and are shown to reproduce the wavefront and phase with very high fidelity. © 2012 Optical Society of America.
Authors & Co-Authors
Schulze, Christian
Germany, Jena
Institute of Applied Optics
Naidoo, Darryl
South Africa, Pretoria
The Council for Scientific and Industrial Research
Flamm, Daniel
Germany, Jena
Institute of Applied Optics
Schmidt, Oliver A.
Germany, Jena
Institute of Applied Optics
Germany, Erlangen
Max Planck Institute for the Science of Light
Forbes, Andrew D.
South Africa, Pretoria
The Council for Scientific and Industrial Research
South Africa, Durban
University of Kwazulu-natal
Duparrè, Michael R.
Germany, Jena
Institute of Applied Optics
Statistics
Citations: 88
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1364/OE.20.019714
e-ISSN:
10944087