Yu-ting XU, Qi-feng XU, Qian-yun SONG, Yi-fan HUANG. A Strip Sub-wavelength Radial Polarization Grating[J]. Acta Photonica Sinica, 2020, 49(3): 0305001
- Acta Photonica Sinica
- Vol. 49, Issue 3, 0305001 (2020)
Fig. 1. Structure diagram of SPRG
Fig. 2. Out-of-light intensity distribution after SRPG
Fig. 3. Transmittance and extinction ratio of Al, Ag, Au metal gratings
Fig. 4. Relationship between grating polarization characteristics and ridge height
Fig. 5. Relationship between polarization characteristics and period of grating with different duty ratios
Fig. 6. Relationship between polarization characteristics of grating and duty cycle under different periodic conditions
Fig. 7. Refractive index of Al
Fig. 8. Relationship between grating polarization characteristics and incident light wavelength
Fig. 9. Actual sample and metal grating unit of SRPG
Fig. 10. TM transmittance and extinction ratio experimental device diagram of SRPG
Fig. 11. Radial polarization performance experimental device diagram of SRPG
Fig. 12. Outburst light intensity distribution after SRPG detection
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Table 1. Grating polarization performance test results
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Table 2. SRPG radial polarization performance test
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