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High Power Laser Science and Engineering, Volume. 3, Issue 1, 010000e5(2015)

Numerical simulation of debris-removal trajectories on the transport mirrors in high-power laser systems

[in Chinese]1,2, [in Chinese]1, [in Chinese]1, [in Chinese]1,2, [in Chinese]1,2, and [in Chinese]1,2
Author Affiliations
  • 1National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    Interaction force between the gas and a spherical particle.

    Fig. 1. Interaction force between the gas and a spherical particle.

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    Schematic diagram of air ejection.

    Fig. 2. Schematic diagram of air ejection.

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    Model of the air knife blowing.

    Fig. 3. Model of the air knife blowing.

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    Simulation results of the flow.

    Fig. 4. Simulation results of the flow.

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    Velocity vector of the flow near the air knife.

    Fig. 5. Velocity vector of the flow near the air knife.

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    Speed of the flow at the pressure outlet in the -axis.

    Fig. 6. Speed of the flow at the pressure outlet in the -axis.

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    Trajectories of dust particles in four sizes. The sizes of the dust particles in (a)–(d) correspond to 10, 20, 40 and .

    Fig. 7. Trajectories of dust particles in four sizes. The sizes of the dust particles in (a)–(d) correspond to 10, 20, 40 and .

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    Hydrostatic transmission curve on the mirror surface.

    Fig. 8. Hydrostatic transmission curve on the mirror surface.

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    Maximum values of three particle types in four sizes. The sizes of the particles in (a)–(d) correspond to 10, 20, 40, and .

    Fig. 9. Maximum values of three particle types in four sizes. The sizes of the particles in (a)–(d) correspond to 10, 20, 40, and .

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    Layout of the device. #1, #2, #3, #4, and #5 are transport mirrors.

    Fig. 10. Layout of the device. #1, #2, #3, #4, and #5 are transport mirrors.

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    Sample of the transport mirror.

    Fig. 11. Sample of the transport mirror.

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    • Table 1. The numbers of particles before and after blowing.

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      Table 1. The numbers of particles before and after blowing.

      Without debris collectorWith debris collector
      No. ofSize of the particlesNumber of particlesNumber of particlesNumber of particlesNumber of particles
      the mirrors ()before blowingafter blowingbefore blowingafter blowing
      #1 25–50 612 97 495 79
      50–100 632 55 668 43
      #2 25–50 0 12 0 15
      50–100 07 04
      #3 25–50 0 20 0 15
      50–100 08 02
      #4 25–50 0 15 09
      50–100 04 02
      #5 25–50 0 29 06
      50–100 09 02
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    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Numerical simulation of debris-removal trajectories on the transport mirrors in high-power laser systems[J]. High Power Laser Science and Engineering, 2015, 3(1): 010000e5

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    Paper Information

    Category: regular articles

    Received: Oct. 27, 2014

    Accepted: Dec. 5, 2014

    Published Online: Apr. 14, 2015

    The Author Email:

    DOI:10.1017/hpl.2014.53

    Topics

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