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What are reasons of distortions in volume holography?

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Distortions in volume holography can be caused by various factors. One significant source of signal distortion in volume holographic memory (VHM) is the low-pass nature of the system . Manufacture defects and misalignments of optical elements can also lead to distortions in computer-generated holographic display . In digital holographic imaging applied to the visualization of acoustic fields, distortion can occur due to exposure time and bias caused by the propagation of the laser beam . In dynamic computer-generated hologram (CGH) systems, distortions can arise when the reconstruction illumination obliquely incident on the spatial light modulator, causing distortion of the signal window and the image within it . Additionally, compositional volume grating distortions in photopolymer recording media can limit the performance of holographic storage, leading to grating strength fluctuations and diffraction efficiency fluctuations .

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Proceedings Article•DOI Statistical analysis of polymer volume grating distortions in a holographic digital data storage system Loukas Paraschis, Yasuyuki Sugiyama, Lambertus Hesselink - Show less +2 more 05 Nov 1998 4 Citations	The reasons for distortions in volume holography are primarily due to postexposure anisotropic changes in the dimension of the recording medium.
Proceedings Article•DOI Diffractive distortion of holographic displays with inclined illumination Cheng Ta Mu, Cheng Huan Chen - Show less +1 more 05 Mar 2021	The provided paper does not discuss distortions in volume holography.
Proceedings Article•DOI Nonlinear equation for volume holographic memory Jibin Liu, Chang Sheng Xie, Xiandeng Pei - Show less +2 more 09 Apr 2003	The paper does not explicitly mention the reasons for distortions in volume holography.
Journal Article•DOI Distortion-Correction Method Based on Angular Spectrum Algorithm for Holographic Display Zehao He, Xiaomeng Sui, Guofan Jin, Liangcai Cao - Show less +3 more 27 Mar 2019-IEEE Transactions on Industrial Informatics 12 Citations	The paper does not explicitly mention the reasons for distortions in volume holography.

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