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Opto-Electronic Engineering, Volume. 51, Issue 8, 240040(2024)

Torsion pendulum design for metasurface-based diffraction light sail optical force measurement

Pan Gong1,2,3,4, Anbin Du1,2,3, Fei Zhang1,2,3, Mingbo Pu1,2,3,4, Tuojiang Tang1,2,3,4, Lanting Li5, and Xiangang Luo1,2,4、*
Author Affiliations
  • 1National Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China
  • 2State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China
  • 3Research Center on Vector Optical Fields, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China
  • 4College of Materials Sciences and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
  • 5Tianfu Xinglong Lake Laboratory, Chengdu, Sichuan 610299, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (7)
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    Figures & Tables(7)
    Reflective-type geometric-phase metasurface under the illumination of circularly polarized light

    Fig. 1. Reflective-type geometric-phase metasurface under the illumination of circularly polarized light

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    Multi-axis movement of the diffractive light sail under the illumination of vector optical fields

    Fig. 2. Multi-axis movement of the diffractive light sail under the illumination of vector optical fields

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    Principle of torsion pendulum for optical force measurement

    Fig. 3. Principle of torsion pendulum for optical force measurement

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    Optical force torsion pendulum for the regular-shaped light sail

    Fig. 4. Optical force torsion pendulum for the regular-shaped light sail

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    Optical force torsion pendulum for the irregular-shaped light sail. (a) Core part of the torsion pendulum; (b-e) Six-axis optical force torsion pendulum: (b) Optical force torsion pendulum in the x and y directions; (c) Optical force torsion pendulum in the z direction; (d) Optical torque torsion pendulum in the x and y directions; (e) Optical torque torsion pendulum in the z direction

    Fig. 5. Optical force torsion pendulum for the irregular-shaped light sail. (a) Core part of the torsion pendulum; (b-e) Six-axis optical force torsion pendulum: (b) Optical force torsion pendulum in the x and y directions; (c) Optical force torsion pendulum in the z direction; (d) Optical torque torsion pendulum in the x and y directions; (e) Optical torque torsion pendulum in the z direction

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    • Table 1. Theoretical error in optical force measurement for the optical force torsion pendulum for the regular-shaped light sail

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      Table 1. Theoretical error in optical force measurement for the optical force torsion pendulum for the regular-shaped light sail

      参数名称中心值理论误差对待测力的影响/N
      光力F±2.0×10−9
      力臂R75 mm0.03 mm8.0×10−13
      转动惯量I2.73×10−4 kg·m26.0×10−8 kg·m24.4×10−13
      扭秤振幅Δθ±7.4 mrad1.2 μrad3.2×10−13
      扭秤周期T730.1 s0.1 s5.5×10−13
      总误差1.1×10−12

    • Table 2. Theoretical error in optical force measurement for the optical force torsion pendulum in the z direction

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      Table 2. Theoretical error in optical force measurement for the optical force torsion pendulum in the z direction

      参数名称中心值理论误差对待测力的影响/N
      光力F±2.0×10−9——
      力臂R75 mm0.03 mm8.0×10−13
      扭秤振幅Δθ±7.44 mrad1.2 μrad3.2×10−13
      标准球转动惯量IB2.457×10−5 kg∙m21.79×10−8 kg∙m21.5×10−12
      扭秤周期T1(有球)649.3 s0.1 s5.4×10−12
      扭秤周期T2(无球)611.2 s0.1 s5.1×10−12
      总误差7.6×10−12
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    Pan Gong, Anbin Du, Fei Zhang, Mingbo Pu, Tuojiang Tang, Lanting Li, Xiangang Luo. Torsion pendulum design for metasurface-based diffraction light sail optical force measurement[J]. Opto-Electronic Engineering, 2024, 51(8): 240040

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    Paper Information

    Category: Article

    Received: Feb. 26, 2024

    Accepted: Apr. 24, 2024

    Published Online: Nov. 12, 2024

    The Author Email:

    DOI:10.12086/oee.2024.240040

    Topics

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