Zhiyao MA, Donghui ZHENG, Lei CHEN, Jun MA. Method for Refractive Index Uniformity Measurement Based on Two-flat and Three-flat Test[J]. Acta Photonica Sinica, 2024, 53(2): 0212001
- Acta Photonica Sinica
- Vol. 53, Issue 2, 0212001 (2024)
Fig. 1. Steps of two-flats refractive index uniformity test
Fig. 2. The original simulation wave
Fig. 3. Recovered refractive index uniformity wavefront results and its residual comparison
Fig. 4. Experimental setup for two flats refractive index uniformity test
Fig. 5. Wavefront of refractive index uniformity of transmission flat by two flats method
Fig. 6. Experiment of transmission method for refractive index uniformity test
Fig. 7. Steps for measure refractive index uniformity by transmission method
Fig. 8. The result of refractive index uniformity
Fig. 9. Relationship between the rotation angle error and the residual error
Fig. 10. Relationship between the pixel offset and residual error
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Table 1. PV and RMS values of original simulation wavefront
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Table 2. The PV and RMS values of recovered refractive index uniformity
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Table 3. PV and RMS of the recovered refractive index uniformity
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