Wide-angle digital holography with aliasing-free recording  

作　　者：RAFAL KUKOLOWICZ IZABELA GEREJ TOMASZ KOZACKI 

机构地区：[1]Institute of Micromechanics and Photonics,Warsaw University of Technology,02-525 Warsaw,Poland

出　　处：《Photonics Research》2024年第5期1098-1106,共9页光子学研究（英文版）

基　　金：Politechnika Warszawska;Narodowe Centrum Nauki(UMO-2018/31/B/ST7/02980)。

摘　　要：High-quality wide-angle holographic content is at the heart of the success of near-eye display technology.This work proposes the first digital holographic(DH)system enabling recording wide-angle scenes assembled from objects larger than the setup field of view(FOV),which can be directly replayed without 3D deformation in the near-eye display.The hologram formation in the DH system comprises free space propagation and Fourier transform(FT),which are connected by a rectangular aperture.First,the object wave propagates in free space to the rectangular aperture.Then,the band-limited wavefield is propagated through the single lens toward the camera plane.The rectangular aperture can take two sizes,depending on which DH operates in off-axis or phase-shifting recording mode.An integral part of the DH solution is a numerical reconstruction algorithm consisting of two elements:fringe processing for object wave recovery and wide-angle propagation to the object plane.The second element simulates propagation through both parts of the experimental system.The free space part is a space-limited angular spectrum compact space algorithm,while for propagation through the lens,the piecewise FT algorithm with Petzval curvature compensation is proposed.In the experimental part of the paper,we present the wide-angle DH system with FOV25°×19°,which allows high-quality recording and reconstruction of large complex scenes.

关 键 词：RECORDING ANGLE HOLOGRAPHIC 

分 类 号：TN26[电子电信—物理电子学] TP391.41[自动化与计算机技术—计算机应用技术]