Linear polarization of photoluminescence emission and absorption in quantum-well wire structures: Experiment and theory

P. Ils, Ch Gréus, A. Forchel, V. D. Kulakovskii, N. A. Gippius, S. G. Tikhodeev

Research output: Contribution to journalArticlepeer-review

78 Citations (Scopus)

Abstract

The photoluminescence (PL) and photoluminescence excitation (PLE) spectra of InxGa1-xAs quantum-well wires (QWW's) with wire widths Lx between 10 nm and 1 μm have been found to demonstrate a strong linear polarization parallel to the wires. The polarization is proportional to 1/Lx for broad wires and saturates in the case of narrow wires at a level of 20-60 % depending on the QWW structure design. This effect in PL and band-edge PLE transitions is shown to be mainly due to the modification of the electromagnetic-field eigenmodes in the vicinity of the quantum wires.

Original languageEnglish
Pages (from-to)4272-4277
Number of pages6
JournalPhysical Review B
Volume51
Issue number7
DOIs
Publication statusPublished - 1995
Externally publishedYes

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