Results: 4

1.
Figure 4

Figure 4. From: Demonstration of photon Bloch oscillations and Wannier-Stark ladders in dual-periodical multilayer structures based on porous silicon.

Time-resolved reflection spectra in G(A 2 B 4 ) 6 structure. Calculated time-resolved reflection spectra of the G(A2B4)6 structure for incident pulse energy of (top image) E0= 809 meV (bottom image) E0= 830 meV.

J Octavio Estevez, et al. Nanoscale Res Lett. 2012;7(1):413-413.
2.
Figure 1

Figure 1. From: Demonstration of photon Bloch oscillations and Wannier-Stark ladders in dual-periodical multilayer structures based on porous silicon.

Dual-periodical multilayer structure. Schematic view of the 1D dual-periodic structure showing the layer parameters, where n and m represent the period numbers of a and b in A and B substructures, respectively; n1 and n2 are high and low refractive indexes of alternating dielectric layers in a and b; the layer thickness is d1 and d2 for a, and d3 and d4 for b, respectively.

J Octavio Estevez, et al. Nanoscale Res Lett. 2012;7(1):413-413.
3.
Figure 2

Figure 2. From: Demonstration of photon Bloch oscillations and Wannier-Stark ladders in dual-periodical multilayer structures based on porous silicon.

Scattering states map and reflectance spectra of (A 2 B 4 ) 6 structure. (a) Calculated electric field intensity distribution of TM modes in (A2B4)6 structure with no refractive index gradient i.e., △n= 0 (flat miniband situation). A change of color from dark to bright corresponds to the increase in the light intensity. (b) Measured and simulated reflectance spectra of the structure. The schematic illustration of the corresponding DP structure is shown just above the scattering states map.

J Octavio Estevez, et al. Nanoscale Res Lett. 2012;7(1):413-413.
4.
Figure 3

Figure 3. From: Demonstration of photon Bloch oscillations and Wannier-Stark ladders in dual-periodical multilayer structures based on porous silicon.

Scattering states map and reflectance spectra of G(A 2 B 4 ) 6 structure. (a) Calculated electric field intensity distribution of TM modes in G(A2B4)6 structure with a linear gradient in refractive index (△n = 16%). Inclined white lines are shown as indicators of the miniphotonic band inclination. One can observe the formation of the photonic WSLs confined between two minigaps. (b) Measured and simulated reflectance spectra of the structure and the input Gaussian pulse (red dotted line) in frequency domain.

J Octavio Estevez, et al. Nanoscale Res Lett. 2012;7(1):413-413.

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