Meng Wu, Xiyin Liang, Duixiong Sun, Lingfei Xie, Ruilin Chen, Dapeng Wen, Tianchen Zhang. Design of Asymmetric Rectangular Ring Resonance Cavity Electrically Adjustable Filter Based on Surface Plasmon Polaritons[J]. Acta Optica Sinica, 2020, 40(14): 1423001
- Acta Optica Sinica
- Vol. 40, Issue 14, 1423001 (2020)
Fig. 1. Schematic diagram of an asymmetric rectangular ring resonator MIM filter
Fig. 2. Transmission spectrum diagram. (a) Transmission spectra of three different structures of rectangular ring cavity; (b) transmission spectrum of structure 3
Fig. 3. Transmission spectra of the three different rectangular ring cavity structure filters
Fig. 4. Magnetic field distribution of the ring cavity structure. (a)--(c) Single rectangular ring cavity structure with λ=916, 1140, 2012 nm; (d)--(f) symmetric rectangular ring cavity structure with λ=912, 1136, 2012 nm; (g)--(i) asymmetrical rectangular ring cavity structure with λ=908, 1136, 1996 nm
Fig. 5. Effect of changing the structure parameter h on the transmission characteristics of rectangular ring cavity filter. (a) Transmission spectrum; (b) resonance wavelength
Fig. 6. Effect of changing the structure parameter L on the transmission characteristics of rectangular ring cavity filter. (a) Transmission spectrum; (b) resonance wavelength
Fig. 7. Effect of changing the structure parameter d on the transmission characteristics of rectangular ring cavity filter. (a) Transmission spectrum; (b) resonance wavelength
Fig. 8. Effect of changing the applied voltage U on the transmission characteristics of rectangular ring cavity filter. (a) Transmission spectrum; (b) resonance wavelength
Fig. 9. Multiple rectangular ring cavities structure. (a) Schematic diagram; (b) transmission spectrum
Fig. 10. Transmission spectra at different voltages
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Table 1. Comparison of transmission characteristics of different structure filters
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