Title

Mid-infrared absorption by short-period InAs/GaSb type II superlattices

RIS ID

29361

Publication Details

Li, L., Xu, W., Zeng, Z., Wright, A., Zhang, C., Zhang, J. & Shi, Y. (2009). Mid-infrared absorption by short-period InAs/GaSb type II superlattices. Microelectronics Journal, 40 (4-5), 815-817.

Abstract

We present a theoretical study on optical properties of short-period InAs/GaSb type-II superlattices (SLs) which can serve for mid-infrared (MIR) detection. The miniband structure of such SLs is calculated using the Kronig–Penney model. On the basis of the energy-balance equation derived from the Boltzmann equation we calculate the optical absorption coefficient. The obtained results agree with recent experimental findings. Moreover, the dependence of the MIR absorption in InAs/GaSb type-II SLs on temperature and well-widths are examined.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.mejo.2008.11.050