Far-infrared modulated photoluminescence spectroscopy of InSb/GaSb quantum dot structures

R.A. Child, R.J. Nicholas, N.J. Mason, P.A. Shields, J.-P.R. Wells, I.V. Bradley, J. Phillips, B.N. Murdin

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14 Citations (Scopus)

Abstract

The first far-infrared modulated photoluminescence (FIRM-PL) measurements in InSb/GaSb quantum dots have been performed. Far-infrared absorption is found to both enhance and suppress the quantum dot PL depending on the FIR intensity. This behavior is attributed to the nonthermal distribution of carriers amongst the quantum dots. The spectral dependence of the FIRM-PL signal measures the energy spectrum of the quantum dots, showing a peak at 14.5 meV corresponding to transitions between the first two energy levels of the dot distribution.
Original languageEnglish
Pages (from-to)1653071-1653075
Number of pages5
JournalPhysical Review B
Volume68
Issue number16
DOIs
Publication statusPublished - 2003

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    Child, R. A., Nicholas, R. J., Mason, N. J., Shields, P. A., Wells, J-PR., Bradley, I. V., Phillips, J., & Murdin, B. N. (2003). Far-infrared modulated photoluminescence spectroscopy of InSb/GaSb quantum dot structures. Physical Review B, 68(16), 1653071-1653075. https://doi.org/10.1103/PhysRevB.68.165307