Meixia Yang, Zhe Kong, Qiaofeng Tan, Gang Ren, Liangping Xue. Precise Design of Diffraction Optical Elements Based on Annular Beam Shaping[J]. Acta Optica Sinica, 2019, 39(3): 0305002
- Acta Optica Sinica
- Vol. 39, Issue 3, 0305002 (2019)
Fig. 1. Schematics of computational area. (a) Input plane; (b) output plane
Fig. 2. Iterative process for different algorithms. (a) Conventional improved G-S algorithm; (b) proposed algorithm
Fig. 3. Intensity distributions obtained with conventional improved G-S algorithm. (a) Two-dimensional intensity distribution; (b) three-dimensional intensity distribution
Fig. 4. Intensity distributions of the phase designed by the conventional improved G-S algorithm after double sampling. (a) Two-dimensional intensity distribution; (b) three-dimensional distribution
Fig. 5. Intensity distributions of circle-spot obtained with proposed algorithm. (a) Two-dimensional intensity distribution; (b) three-dimensional intensity distributions
Fig. 6. Schematic of experimental setup
Fig. 7. SLM phase designed with different algorithms. (a) Conventional improved G-S algorithm; (b) proposed algorithm
Fig. 8. Normalized two-dimensional intensity distribution obtained with different algorithms. (a) Conventional improved G-S algorithm; (b) proposed algorithm
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Table 1. Simulated and experimental results obtained with two algorithms
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