Chi Hu, Jin Zhang, Guobin Sun, Shilei Jiang, Yanyan Liu. Study on Improving Quality of Liquid Crystal Spatial Light Modulator Holographic Reproduction Images by Phase Compensation Method of Reproduction Domain Model[J]. Acta Optica Sinica, 2023, 43(19): 1909001

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- Acta Optica Sinica
- Vol. 43, Issue 19, 1909001 (2023)

Fig. 1. Schematic diagram of spatial coordinate relationship between discrete holographic recording and reproduction

Fig. 2. Schematic diagram of SLM pixel raster structure

Fig. 3. Light intensity distribution of multistage diffraction effect in SLM holographic reproduction

Fig. 4. Schematic diagram of SLM used for holographic reproduction of multistage diffraction effect

Fig. 5. Schematic diagram of reproduced image change after superimposing blazed grating. (a) Reproduced image without blazed grating superimposed; (b) reproduced image superimposed with vertical slot to digital blazed grating; (c) reproduced image superimposed with horizontal and vertical slot to digital blazed gratings

Fig. 6. Schematic diagram of reproduced image change by phase compensation method of reproduction domain model. (a) Reproduced image without blazed grating superimposed; (b) reproduced image superimposed with vertical slot to digital blazed grating and compensation

Fig. 7. Schematic diagram of reproduction domain determination

Fig. 8. Calculation flow chart. (a) Flow chart of original holographic calculation; (b) flow chart of repruduction domain model phase compensation calculation

Fig. 9. Original image

Fig. 10. Image of reproduction domain

Fig. 11. Reproduction results of reproduction domain and reproduction results after compensation calculation. (a) Reproduction results of reproduction domain; (b) reproduction results after compensation calculation

Fig. 12. Inverse derivation of normalized compensation amount. (a) Original compensation amount; (b) compensation amount after inversion

Fig. 13. Reproduction image after compensation. (a) Diagram of reproduced image after compensation; (b) diagram of 3D reproduced image after compensation

Fig. 14. Optical path of holographic experiment for verification

Fig. 15. Fresnel diffraction phase hologram. (a) Uncompensated phase hologram; (b) compensated phase hologram

Fig. 16. Reproduction results under different exposures

Fig. 17. Quality comparison curves of output results before and after improvement

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