Yijun Qi, Chenliang Chang, Jun Xia. Accurate complex modulation by the iterative spatial cross-modulation method[J]. Chinese Optics Letters, 2017, 15(2): 020901
- Chinese Optics Letters
- Vol. 15, Issue 2, 020901 (2017)
Fig. 1. Digital encoding step.
Fig. 2. Optical decoding step.
Fig. 3. Schematic of the proposed method.
Fig. 4. Simulation results (a) and (e) from the conventional SCMM and (b) and (f), (c) and (g), and (d) and (h) the proposed method with different numbers of iterations using a random phase diffuser of the 256 gray level.
Fig. 5. Reconstructed amplitude and phase. (a) and (e) by the proposed method at 50 times iterations. (b) and (f) by the conventional SCMM. (c) and (g) by the off-axis method. (d) and (h) by the DPH method.
Fig. 6. Created complex field k 0 ( x , y ) 1920 × 1080 768 × 768 512 × 512 256 × 256 768 × 768 512 × 512 256 × 256
Fig. 7. (a) RMSE curves of the reconstructed amplitude image at various diffusion ratios. (b) The RMSE curves of the reconstructed phase image at various diffusion ratios.
Fig. 8. Schematic setup used to measure the amplitude of a complex object.
Fig. 9. (a) and (c) Numerical results of the amplitude of the conventional SCMM and the proposed method by iteration 20. (b) and (d) Optical results of the intensity of the conventional SCMM and the proposed method by iteration 20. The phase of the reconstructed object is zero.
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Table 1. RMSE Comparison Among Our Method at 50 Times Iterations, Conventional SCMM[18], Off-axis Method[13], and DPH Method[19]
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Table 2. RMSE Comparison Between Our Method at 50 Times Iterations and the Conventional SCMM[18] for Different Resolutions of Reconstructed Amplitudes
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