Hai LIU, Siyi ZHAO, Cong CHEN, Peng GAO, Yaowei DAI, Jiaming ZHAO, Yinhui WAN, Xiangyu LU, Xinyan WANG, Lei LI. Multifunctional Device Design Based on Composite Gratings and Gradient Supersurfaces[J]. Acta Photonica Sinica, 2023, 52(9): 0923002
- Acta Photonica Sinica
- Vol. 52, Issue 9, 0923002 (2023)
Fig. 1. Device block diagram
Fig. 2. Effect of super-cell structure and length of the top Ag nanostructure L on reflectivity and reflection phase
Fig. 3. Effect of relative position of grating transverse（
Fig. 4. Transmission spectra of gratings at different widths w1 on this structure
Fig. 5. Transmission spectra of gratings with different heights h1 on this structure
Fig. 6. Transmission spectra of this structure at different SiO2 spacer heights t1
Fig. 7. Forward and reverse transmission spectra of the device when an x-polarized state light wave is incident
Fig. 8. The electric field distribution of the structure at 1 550 nm when light is incident in the forward and reverse directions
Fig. 9. The electric field distribution of the structure at 1 128 nm when light is incident in the forward and reverse directions
Fig. 10. The reflectance，transmittance and absorption spectra and electric field distribution Ex at 1 300~1 400 nm band when x-polarized light wave is reverse incident
Fig. 11. Forward and reverse transmission spectra of the device when a light wave in the y-polarized state is incident
Fig. 12. Abnormal reflection phenomenon when y-polarized light waves are reverse incident at 920 nm
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