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a, te P nd niv ngo ne 1 th tica electronic transition. From the width and position of the spectrum, the Rashba spin-splitting can be identified optically and, therefore, important spintronic properties can be measured though optical experiments. well structures, such as InGaAs/InAlAs-based two-dimen- using the magnetotransport experiments to study the optical and optoelectronic properties of a spintronic system. Our prime motivation of this study is to see whether the spectrum of optical absorption induced b