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Calculation of the field across the structure (Ref. 6) with a schematic of the active region superimposed for reference, where and are the well and barrier widths, respectively.
Depletion width as a function of reverse bias using the (top line) and approximations (bottom line).
Energy of the peak absorption as a function of applied bias for measured values (symbols) and a line fitted to the data using the theory with the internal field as a free parameter.
Amplitude of the peak absorption as a function of applied bias for measured (symbols) and calculated (line) values. The measured data include any effect due to incomplete extraction of the photogenerated carriers.
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