Review Article

Recent Progress in Silicon Photonics: A Review

Figure 20

The effect of tensile strain on the band structure of Ge. (a) Schematic of how the band diagram changes as biaxial tensile strain is applied. (b) Plot of the bandgap energies for the Γ ( 𝐸 𝑔 ( Γ ) ) and L ( 𝐸 𝑔 ( L ) ) bands as a function of tensile strain. Figures are taken from [93].
428690.fig.0020a
(a)
428690.fig.0020b
(b)