Figure 2

Figure 2: Measured Raman shift of the Ge-Ge mode as a function of   bar width for 11-nm-thick strained Ge epitaxial layer on a relaxed Si­0.5Ge­0.5 substrate. The uniaxial s-Ge limit, estimated to be half of the biaxial Raman shift, is shown for reference

Figure 2: Measured Raman shift of the Ge-Ge mode as a function of bar width for 11-nm-thick strained Ge epitaxial layer on a relaxed Si­0.5Ge­0.5 substrate. The uniaxial s-Ge limit, estimated to be half of the biaxial Raman shift, is shown for reference