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Laser & Optoelectronics Progress, Volume. 58, Issue 7, 0723004(2021)

Research on Phase Characteristics of Liquid Crystal Spatial Light Modulator Based on Polarization Display

Yayun Ma1, Dong'e Zhao1,2、*, and Bin Zhang1
Author Affiliations
  • 1College of Information and Communication Engineering, North University of China, Taiyuan , Shanxi 030051, China
  • 2State Key Laboratory of Electronic Testing Technology, North University of China, Taiyuan , Shanxi 030051, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
    Equations (11)
    References (22)
    Cited By (1)
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    Figures & Tables(10)
    Schematic of reflective LCSLM

    Fig. 1. Schematic of reflective LCSLM

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    Vibration trajectory curves of elliptically polarized light and light intensity distribution through azimuthally polarization axis finder at different δ values. (a) 0; (b) π/6; (c) π/3; (d) π/2

    Fig. 2. Vibration trajectory curves of elliptically polarized light and light intensity distribution through azimuthally polarization axis finder at different δ values. (a) 0; (b) π/6; (c) π/3; (d) π/2

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    Schematic of experimental setup for measuring phase characteristic of LCSLM

    Fig. 3. Schematic of experimental setup for measuring phase characteristic of LCSLM

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    Flowchart of image processing

    Fig. 4. Flowchart of image processing

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    Images at different angles. (a) 90°; (b) 82°; (c) 74°; (d) 66°; (e) 58°; (f) 50°

    Fig. 5. Images at different angles. (a) 90°; (b) 82°; (c) 74°; (d) 66°; (e) 58°; (f) 50°

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    Relationship between reflectivity and gray level of LCSLM

    Fig. 6. Relationship between reflectivity and gray level of LCSLM

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    Phase modulation characteristic curves of LCSLM

    Fig. 7. Phase modulation characteristic curves of LCSLM

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    Correspondence between driving gray value and input gray value

    Fig. 8. Correspondence between driving gray value and input gray value

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    Phase modulation curves corrected by inverse interpolation method

    Fig. 9. Phase modulation curves corrected by inverse interpolation method

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    • Table 1. Measurement results under different acquisition times

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      Table 1. Measurement results under different acquisition times

      θT/（°）12345θM/（°）
      9089.8589.9590.1289.8189.8389.91
      8686.2186.0885.9985.9886.1386.08
      8282.0181.9881.8081.8281.9181.90
      7877.9877.9278.0477.8277.9377.94
      7474.1873.9574.1574.0774.1174.09
      7069.9570.0570.1170.0869.9470.03
      6666.0165.9565.8865.9165.8665.92
      6262.0862.0462.1261.9862.1162.07
      5858.0258.0457.9357.8957.9557.97
      5454.1154.0854.0654.1554.0254.08
      5050.0349.8649.9449.8949.8549.91
      4646.1646.2546.2846.2646.2846.25
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    Yayun Ma, Dong'e Zhao, Bin Zhang. Research on Phase Characteristics of Liquid Crystal Spatial Light Modulator Based on Polarization Display[J]. Laser & Optoelectronics Progress, 2021, 58(7): 0723004

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    Paper Information

    Category: Optical Devices

    Received: Aug. 13, 2020

    Accepted: Sep. 14, 2020

    Published Online: Apr. 25, 2021

    The Author Email: Dong'e Zhao (zhaodonge@nuc.edu.cn)

    DOI:10.3788/LOP202158.0723004

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology