Maorong Zang, Zhigang Jia, Hailiang Dong, Aiqin Zhang, Jian Liang, Shufang Ma, Bingshe Xu. Diffraction Anomalies and Structural Design of One-dimensional TiO2 Subwavelength Gratings[J]. Acta Optica Sinica, 2022, 42(9): 0905001
- Acta Optica Sinica
- Vol. 42, Issue 9, 0905001 (2022)
Fig. 1. Schematic diagram of one-dimensional SWG
![Reflection spectra of GaN-based SWG. (a) Reflection spectra in Ref. [19]. (b) reflection spectra obtained by simulation](/richHtml/gxxb/2022/42/9/0905001/img_2.jpg)
Fig. 2. Reflection spectra of GaN-based SWG. (a) Reflection spectra in Ref. [19]. (b) reflection spectra obtained by simulation
Fig. 3. Structure of one-dimensional TiO2 SWG
Fig. 4. Reflection spectra of TE polarization and TM polarization in TiO2 SWG
Fig. 5. TM polarization reflection spectra of TiO2 SWG at different diffraction orders
Fig. 6. TE polarization reflection spectra of TiO2 SWG at different diffraction orders
Fig. 7. Reflection spectra under different grating periods when grating height is 0.25 μm and duty cycle is 0.34. (a) Full reflection spectra; (b) magnified view of top of reflection spectra
Fig. 8. Reflection spectra when grating height is 0.25 μm, duty cycle is 0.34, and period range is 0.488--0.496 μm
Fig. 9. Reflection spectra under different grating duty cycles when grating height is 0.49 μm and height is 0.25 μm. (a) Full reflection spectra; (b) magnified view of top of reflection spectra
Fig. 10. Reflection spectra under different grating heights when grating period is 0.49 μm and duty cycle is 0.34. (a) Full reflection spectra; (b) magnified view of top of reflection spectra
Fig. 11. Reflection spectra when grating period is 0.49 μm, duty cycle is 0.34, and grating height range is 0.243--0.255 μm
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