Gang JING, Zhi LIU, Peng LIN, Shutong LIU, Qingfang JIANG. Boundary Layer Effect Simulation Based on Liquid Crystal Spatial Light Modulator[J]. Acta Photonica Sinica, 2024, 53(2): 0223001
- Acta Photonica Sinica
- Vol. 53, Issue 2, 0223001 (2024)
Fig. 1. Boundary layer focusing effect diagram
Fig. 2. Schematic diagram of the method for measuring the actual focal length
Fig. 3. The relationship between flight Mach number and the equivalent focal length of the boundary layer as a negative lens
Fig. 4. The relationship between flight altitude and the equivalent focal length of the boundary layer as a negative lens
Fig. 5. Schematic diagram of boundary layer effect simulator based on liquid spatial light modulator
Fig. 6. Experimental diagram of performance verification of a spatial light modulator simulating boundary layer effects
Fig. 7. The phase distribution gray scale and the light spot received by the camera
Fig. 8. The original laser spot image and energy distribution before pretreatment
Fig. 9. Spot image and energy distribution after grayscale adjustment and median filtering
Fig. 10. Hough transform circle fitting flow chart of spot radius
Fig. 11. Curve of theoretical and experimental effects of boundary layer effect simulation under different flight states
Fig. 12. Boundary layer simulation error curve based on spatial light modulator
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Table 1. LC-SLM performance parameters
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Table 2. Camera performance parameters
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Table 3. Comparison of theoretical and experimental results of boundary layer effect simulation under different flight states
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