Jiuzhou Yu, Xiuhong Liu, Yining Bao, Danping Ren, Jinhua Hu, Jijun Zhao. Design of Narrow-Band Flat-Top Filter Based on Cascaded Compound Gratings[J]. Acta Optica Sinica, 2021, 41(20): 2005001
- Acta Optica Sinica
- Vol. 41, Issue 20, 2005001 (2021)
Fig. 1. Structural diagrams. (a) Double-layer compound GMR grating filter; (b) single-layer compound GMR grating filter
Fig. 2. Reflection spectra of double-layer and single-layer GMR gratings
Fig. 3. Reflection spectra of double-layer GMR gratings with different L
Fig. 4. Reflection spectra of double-layer GMR gratings with different spacings d. (a) d=337 nm; (b) d=347 nm; (c) d=357 nm; (d) d=367 nm
Fig. 5. Electric field intensity distributions of the eigenmode mode in different double-layer compound grating structures with various spacings d. (a) d=307 nm; (b) d=337 nm; (c) d=367 nm
Fig. 6. Reflection spectra of double-layer GMR grating with different grating periods
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