Tables at a glance

Table 1

Figures at a glance

Comments

Figure 1

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Figure 2

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Figure 3

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Figure 4

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Figure 5

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Figure 6

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Figure 7

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Figure 8

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Figure 9

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Figure 10

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Figure 11

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Figure 12

Table 1

	Bragg	Thue-Morse	Cantor	Double period
Layer number	32	32	27	32
Maximal slowing down factor	52	140	160	610
Group index	106	288,5	326	1245
Group velocity (ms-1 )	0.0094 c	0.0035 c	0.003 c	0.0008 c

Table 1 : Summary of the structural and the optical parameters, obtained for the Double- period Thue-Morse, the Cantor and the periodic structures

FIGURE 1

Figure 1: Example of multilayer periodic structure of alternated H/L layers, with refractive indexes nH and nL, and thicknesses dH and dL, respectively

FIGURE 2

Figure 2: Example of multilayer Cantor quasi-periodic structure of alternated H/L layers, with refractive indexes nH and nL, and thicknesses dH and dL, respectively

FIGURE 3

Figure 3: Example of multilayer Thue- Morse quasi-periodic structure of alternated H/L layers, with refractive indexes nH and nL, and thicknesses dH and dL, respectively

FIGURE 4

Figure 4: Example of multilayer Double Period quasi-periodic structure of alternated H/L layers, with refractive indexes nH and nL, and thicknesses dH and dL, respectively

FIGURE 5

Figure 5: : Variation of the transmittance, the group velocity and the slowing down factor as function of angular frequency for a periodic structure containing 18 layers

FIGURE 6

Figure 6: Variation of slowing down factor as a function of the angular frequency of the Double period one-dimensional structure for different generations number (N=2, 3, 4, 5 and 6) corresponding respectively to number of layers p (p=4, 16, 32, 64 and 128)

FIGURE 7

Figure 7: Variation of the slowing down factor as function of angular frequency of the Double period one-dimensional structure containing 32 layers for different wavelength reference ((λ₀=1μm, λ₀=1.2 μm, λ₀=1.33 μm and λ₀=1.55μm)

FIGURE 8

Figure 8: Variation of the slowing down factor as function of angular frequency of a Double period structure containing 32 for two different materials H and L (e.g. for different contrast indexes Δn=0.85, Δn=1.45,Δn=2,Δn=2.25 and Δn=3 )

FIGURE 9

Figure 9: Variation of the slowing down factor as function of angular frequency of the Double period one-dimensional structure containing 32 for different incidence angle (ϴ= 0rad, ϴ=0.5 rad, ϴ=1.5 rad, and ϴ= 2rad)

FIGURE 10

Figure 10: Variation of the slowing down factor as function of angular frequency of the Double period structure (solid line) and the periodic structure (dashed line) obtained for the same number of layers equal to 32

FIGURE 11

Figure 11: Variation of the slowing down factor as function of angular frequency of the Double period structure (solid line) and the Thue Morse structure (dashed line) obtained for the same number of layers equal to 32

FIGURE 12

Figure 12: Variation of the slowing down factor as function of angular frequency of the Double period structure (solid line) and the Thue Morse structure (dashed line) obtained for the same number of layers equal to 32