Characterization of holographically generated beams via phase retrieval based on Wigner distribution projections



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Martínez Matos, Óscar and Rodrigo Martín-Romo, José Augusto and Alieva, Tatiana Krasheninnikova and Cámara, Alejandro and Cheben, Pavel and Calvo Padilla, María Luisa (2011) Characterization of holographically generated beams via phase retrieval based on Wigner distribution projections. Optics Express, 19 (7). pp. 6064-6077. ISSN 1094-4087

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In this work, we propose a robust and versatile approach for the characterization of the complex field amplitude of holographically generated coherent-scalar paraxial beams. For this purpose we apply an iterative algorithm that allows recovering the phase of the generated beam from the measurement of its Wigner distribution projections. Its performance is analyzed for beams of different symmetry: Laguerre-Gaussian, Hermite-Gaussian and spiral ones, which are obtained experimentally by a computer generated hologram (CGH) implemented on a programmable spatial light modulator (SLM). Using the same method we also study the quality of their holographic recording on a highly efficient photopolymerizable glass. The proposed approach is useful for the creation of adaptive CGH that takes into account the peculiarities of the SLM, as well as for the quality control of the holographic data storage.

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© 2011 Optical Society of America.
The financial support of the Spanish Ministry of Science and Innovation under project TEC2008-04105 is acknowledged. José A. Rodrigo gratefully thanks a “Juan de la Cierva” grant and A. Cámara acknowledges the financial support of the “Comunidad de Madrid” and the European Social Fund.

Uncontrolled Keywords:Spatial Light Modulators, Liquid-Crystal, Gaussian Beams, Fractional Fourier, Complex Fields, Algorithm, Holograms, Aberration, Transform, Photons
Subjects:Sciences > Physics > Optics
ID Code:25130
Deposited On:24 Apr 2014 08:34
Last Modified:20 May 2014 08:47

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