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(Color online) Geometry of the problem. In our calculations we take the following values: , , , , , , , and .
(Color online) Dispersion properties of the Tamm states in the first and second spectral gaps. Shaded: Bands of the one-dimensional photonic crystal. Solid: Dispersion of the Tamm states with LHM. Dashed: Dispersion of the surface waves in the problem where the metamaterial is replaced by vacuum. Corresponding values of the cap layer thickness are indicated next to the curves. Inset shows a blowup region of small . Points (a), (b), and (d) correspond to the mode profiles presented in Figs. 3(a), 3(b), and 3(d).
(Color online) Examples of the left-handed surface Tamm states. (a) Backward LHM mode: , , and . (b) Forward LHM mode: , , and : (c) Guided mode with a thick cap layer: , , and . (d) Surface mode in the second band gap: , , and . Modes (a), (b), and (d) correspond to the points in Fig. 2.
(Color online) Total energy flow in RH (dashed) and LH (solid) Tamm modes vs . Cap layer thickness is .
(Color online) Existence regions of the surface Tamm modes; the modes do not exist in the shaded regions. Dashed curves mark the corresponding regions for the right-handed Tamm states.
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