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Figure 2 | Nanoscale Research Letters

Figure 2

From: Observation of strong anisotropic forbidden transitions in (001) InGaAs/GaAs single-quantum well by reflectance-difference spectroscopy and its behavior under uniaxial strain

Figure 2

Real part of RD spectra and ΔR / R spectra of In 0.2 Ga 0.8 As/GaAs single-quantum well with nominal well width 3, 5, and 7 nm, respectively. The spectra are measured at 80 K. The vertical lines indicate the energy positions of the transitions 1e1hh (solid) and 1e1lh (dotted). And the vertical arrows indicate the positions of 1e2hh (upward arrows), leh* (downward arrows), and 2e2hh (downward arrows). Here h* represents continuous hole states.

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