Mohamed H. El Sherif, Mohamed H. Bakr, Ezzeldin A. Soliman. E-shaped wideband plasmonic nantennas with linear and dual-linear polarizations[J]. Photonics Research, 2015, 3(4): 140
- Photonics Research
- Vol. 3, Issue 4, 140 (2015)
Fig. 1. E-shape nantenna configuration: (a) side view and (b) top view.
Fig. 2. Excited SPPs along the arms of the E nantenna illuminated with a plane wave.
Fig. 3. Intensity enhancement at the gap of the proposed E nantenna versus wavelength.
Fig. 4. Electric field intensity distribution along the central x – y L x , out = 900.0 nm L y , out = 800.0 nm W out = 30.0 nm L in = 550.0 nm W in = 20.0 nm λ = 2.88 μm λ = 4.41 μm
Fig. 5. Distribution of the magnetic field component H z x – y L x , out = 900.0 nm L y , out = 800.0 nm W out = 30.0 nm L in = 550.0 nm W in = 20.0 nm λ = 2.88 μm λ = 4.41 μm
Fig. 6. Capacitive junction coupling between the inner and outer arms.
Fig. 7. S parameters describing the coupling between the inner and outer arms.
Fig. 8. Extinction cross section of the E-nantenna array versus wavelength for different values of the periodicity.
Fig. 9. Intensity enhancement at the nantenna gap versus wavelength for different values of the outer arm horizontal length L x , out
Fig. 10. Intensity enhancement at the nantenna gap versus wavelength for different values of the outer arms vertical length L y , out
Fig. 11. Intensity enhancement at the nantenna gap versus wavelength for different values of outer arm width W out
Fig. 12. Intensity enhancement at the nantenna gap versus wavelength for different values of inner arm length L in
Fig. 13. Intensity enhancement at the nantenna gap versus wavelength for different values of inner arm width W in
Fig. 14. Dual-polarized E nantenna, where the SiO 2
Fig. 15. Intensity enhancement at the two gaps of the proposed dual-polarized nantenna illuminated with normal incident plane waves: (a) y x
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