• Laser & Optoelectronics Progress
  • Vol. 59, Issue 2, 0200004 (2022)
Zhaoxiang Fang1、2, Juan Zhao1、*, Zhenzhong Xiao2、**, Shaoguang Shi2、3, Rui Sun3, and Liyan Zhu4
Author Affiliations
  • 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen , Guangdong 518055, China
  • 2Shenzhen Orbbec Co., Ltd., Shenzhen , Guangdong 518057, China
  • 3College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen , Guangdong 518060, China
  • 4School of Information Science Technology, University of Science and Technology of China, Hefei , Anhui 230026, China
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    DOI: 10.3788/LOP202259.0200004 Cite this Article Set citation alerts
    Zhaoxiang Fang, Juan Zhao, Zhenzhong Xiao, Shaoguang Shi, Rui Sun, Liyan Zhu. Recent Advances of Binary Computed Holography in High-Speed Wavefront Modulation[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0200004 Copy Citation Text show less
    Traditional diffractive optical elements used in the generation of vortex beam. (a) Spiraling phase plate; (b) simulated phase pattern; (c) holographic grating
    Fig. 1. Traditional diffractive optical elements used in the generation of vortex beam. (a) Spiraling phase plate; (b) simulated phase pattern; (c) holographic grating
    Real images for two spatial light modulators. (a) Liquid-crystal spatial light modulator; (b) digital micromirror device
    Fig. 2. Real images for two spatial light modulators. (a) Liquid-crystal spatial light modulator; (b) digital micromirror device
    Trait of DMD as an optical switch and its inner structure
    Fig. 3. Trait of DMD as an optical switch and its inner structure
    Principle of focusing light through scattering medium. (a) Random speckle formed by the unmodulated beam through scattering medium; (b) focusing light obtained by the modulated beam through scattering medium
    Fig. 4. Principle of focusing light through scattering medium. (a) Random speckle formed by the unmodulated beam through scattering medium; (b) focusing light obtained by the modulated beam through scattering medium
    Comparison of focusing effect between slow and high-speed wavefront modulation systems when light travels through a transient medium[27]. (a) (b) Holograms recording in a low or high-speed wavefront modulation system; (c) (d) intensity profiles after optically reading the corresponding holograms
    Fig. 5. Comparison of focusing effect between slow and high-speed wavefront modulation systems when light travels through a transient medium[27]. (a) (b) Holograms recording in a low or high-speed wavefront modulation system; (c) (d) intensity profiles after optically reading the corresponding holograms
    DMD-based high-speed wavefront modulation system[32]. (a) Simplified schematic; (b) optical path schematic of the recording step; (c) optical path schematic of the playback step
    Fig. 6. DMD-based high-speed wavefront modulation system[32]. (a) Simplified schematic; (b) optical path schematic of the recording step; (c) optical path schematic of the playback step
    4f optical system used for preparing the structured beams combined with a filter
    Fig. 7. 4f optical system used for preparing the structured beams combined with a filter
    Schematic diagram of error diffusion method[69]. (a) Gray value normalization of grayscale hologram; (b) specific algorithm execution process
    Fig. 8. Schematic diagram of error diffusion method[69]. (a) Gray value normalization of grayscale hologram; (b) specific algorithm execution process
    Simulation of using Lee and optimized Lee method to generate high-order Bessel beam (l=1), respectively[69]. (a) (b) (c) Theoretical high-order Bessel beams; (d) (e) (f) coding results of Lee algorithm; (g) (h) (i) coding results of optimized Lee algorithm
    Fig. 9. Simulation of using Lee and optimized Lee method to generate high-order Bessel beam (l=1), respectively[69]. (a) (b) (c) Theoretical high-order Bessel beams; (d) (e) (f) coding results of Lee algorithm; (g) (h) (i) coding results of optimized Lee algorithm
    Schematic diagrams of the super-pixel method[71]. (a) In the DMD plane, the light field E(x) corresponds to the off and on states of the micromirrors; (b) schmetic of aperture positioned on the Fourier plane; (c) phase responses of the three pixels indicated by grey squares; (d) response of superpixel in the target plane, in which Esuperpixel is the sum of the three pixels' responses
    Fig. 10. Schematic diagrams of the super-pixel method[71]. (a) In the DMD plane, the light field E(x) corresponds to the off and on states of the micromirrors; (b) schmetic of aperture positioned on the Fourier plane; (c) phase responses of the three pixels indicated by grey squares; (d) response of superpixel in the target plane, in which Esuperpixel is the sum of the three pixels' responses
    Electric field distribution of a single super-pixel in the target plane[71]. (a) n=3; (b) n=4
    Fig. 11. Electric field distribution of a single super-pixel in the target plane[71]. (a) n=3; (b) n=4
    Schematic diagram of binary amplitude holography based on the deep learning[73]
    Fig. 12. Schematic diagram of binary amplitude holography based on the deep learning[73]
    Zhaoxiang Fang, Juan Zhao, Zhenzhong Xiao, Shaoguang Shi, Rui Sun, Liyan Zhu. Recent Advances of Binary Computed Holography in High-Speed Wavefront Modulation[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0200004
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