Question: Using the diagram in Fig. 17.1, graphically determine the compositions x and y of the quaternary alloy Ga x In 1-x P 1-y As y

Using the diagram in Fig. 17.1, graphically determine the compositions x and y of the quaternary alloy Ga_xIn_1-xP_1-yAs_y which would yield a bandgap energy corresponding to the following wavelengths while being lattice matched to either In_P or GaAs: 808 nm, 980 nm, 1.3 μm, 1.55 μm.

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