Sequential aberrations compensation in an off-axis holographic imaging system

M. Beuret; D. Vukicevic; P. Twardowski; J. Fontaine

doi:10.1117/12.886608

11 May 2011 Sequential aberrations compensation in an off-axis holographic imaging system

M. Beuret, D. Vukicevic, P. Twardowski, J. Fontaine

Proceedings Volume 8074, Holography: Advances and Modern Trends II; 80740B (2011) https://doi.org/10.1117/12.886608
Event: SPIE Optics + Optoelectronics, 2011, Prague, Czech Republic

Abstract

A hybrid system that allows a high quality (low distortion) imaging in strong off axis configuration (50°) is proposed and analyzed in this paper. This imaging system is composed of a Bragg volume hologram (BVH) operating in catadioptric conditions and a programmable transmission computer generated holographic optical element (PCG-HOE). The BVH is used to produce a point by point virtual image in a sequential way by varying the angle of incidence of the reading wave. The PCG-HOE provides sequential aberrations correction adapted to each point to improve the image quality. A method to calculate the phase transfer function (PTF) to be implemented into the PCG-HOE to compensate for the aberrations of each virtual image points is presented. By applying the proposed approach we first demonstrate that the compensation of the aberrations is theoretically possible to a certain extent. In the last part of the paper, we discuss the constraining experimental conditions which have to be met, as well as obstacles to be overcome in order to achieve the fabrication of the BVH.

Citation Download Citation

M. Beuret, D. Vukicevic, P. Twardowski, and J. Fontaine "Sequential aberrations compensation in an off-axis holographic imaging system", Proc. SPIE 8074, Holography: Advances and Modern Trends II, 80740B (11 May 2011); https://doi.org/10.1117/12.886608

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