Chao An, Jinkui Chu, Ran Zhang. Optimization of Bilayer Sub-Wavelength Metallic Grating Based on Genetic Algorithm[J]. Laser & Optoelectronics Progress, 2019, 56(22): 220501
- Laser & Optoelectronics Progress
- Vol. 56, Issue 22, 220501 (2019)
Fig. 1. Schematic of bilayer sub-wavelength metallic grating structure
Fig. 2. Chromosome structure of individual
Fig. 3. Flowchart of optimization of GA
Fig. 4. Relationship between fitness function and iteration number
Fig. 5. TM transmittance characteristics of gratings
Fig. 6. Extinction ratio characteristics of gratings
Fig. 7. Analyses of process tolerance. (a)(c)(e)(g) TM transmittance; (b)(d)(f)(h) extinction ratio
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Table 1. Structural parameters of gratings
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