Yanni TANG, Yan WANG, Xiaona YAN, Huifang ZHANG. Infrared transmission characteristics of metal multi-clad waveguides[J]. Chinese Journal of Quantum Electronics, 2023, 40(5): 789
- Chinese Journal of Quantum Electronics
- Vol. 40, Issue 5, 789 (2023)
Fig. 1. Five-layer asymmetric waveguide structure
Fig. 2. The magnetic field distribution Hy of the five-layer asymmetric waveguide along the ydirection.(a) TM0pmode; (b) TM1mod; (c) TM2 mode; (d) TM3 mode
![Effective refractive index versus wavelength. (a) Real part of effective refractive index versus wavelength;(b) Imaginary part of effective refractive index versus wavelength [insets: Re(neff) and Im(neff) of the TM0p mode]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Effective refractive index versus wavelength. (a) Real part of effective refractive index versus wavelength;(b) Imaginary part of effective refractive index versus wavelength [insets: Re(neff) and Im(neff) of the TM0p mode]
Fig. 4. The average power density of the Gaussian beam normal incident on the xz plane at g = 2.5 μm
Fig. 5. Coupling efficiency of different modes
Fig. 6. Transmission spectra of different refractive indices. (a) z = 2.5 μm, TM0pmode; (b) z = 2.5 μm, Superimposed mode;(c) z = 5 μm, TM0p mode; (d) z = 5 μm, Superimposed mode
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Table 1. Effective refractive index of the four waveguide modes
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Table 2. The wavelength corresponding to the minimum value of different refractive index
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Table 3. Relative wavelength of different refractive index（
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