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Polarization-dependent photoluminescence-excitation spectra of one-dimensional exciton and continuum states in T-shaped quantum wires

Hirotake Itoh·Yuhei Hayamizu·Masahiro Yoshita·Hidefumi Akiyama·Loren N. Pfeiffer·Ken W. West·Marzena H. Szymanska·Peter B. Littlewood
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Abstract

We measured polarization-dependent photoluminescence-excitation spectra of highly uniform T-shaped quantum wires at 5 K. We attribute one peak to the 1D-exciton ground state and the continuous absorption band to 1D continuum states. These had similar polarization-dependences. We also observed some other peaks above the 1D-exciton ground state and attribute them to exciton states consisting of excited hole subbands. These results show good agreement with a model calculation of a single electron-hole pair in T-shaped geometry with exact diagonalizations of the Coulomb interaction.

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Hirotake Itoh, Yuhei Hayamizu, Masahiro Yoshita, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West, Marzena H. Szymanska, Peter B. Littlewood. 2003-07-09. Polarization-dependent photoluminescence-excitation spectra of one-dimensional exciton and continuum states in T-shaped quantum wires. https://doi.org/10.1063/1.1604177

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