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Published online by Cambridge University Press: 22 February 2011
Strain can play a critical role in determining the band structure and optical properties of semiconducting superlattices. Mailhiot and Smith [1] have predicted that strain, induced by mismatch, in InxGal-xSb/InAs makes the superlattice a candidate for infrared detectors. We present a preliminary analysis of the structure, in particular the strain in the layers, of an InxGal-xSb/InAs superlattice, which shows infrared absorption. Our ultimate objective is to relate the structural properties to the optical absorption and an extended (kinematical) diffraction treatment is presented for accomplishing this.