Polarization-dependent photoluminescence-excitation spectra of one-dimensional exciton and continuum states in T-shaped quantum wires
Polarization-dependent photoluminescence-excitation spectra of one-dimensional exciton and continuum states in T-shaped quantum wires
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.
Hirotake Itoh、Ken W. West、Hidefumi Akiyama、Peter B. Littlewood、Yuhei Hayamizu、Loren N. Pfeiffer、Masahiro Yoshita、Marzena H. Szymanska
ISSP, University of Tokyo, and CREST, JSTBell Laboratories, Lucent TechnologiesISSP, University of Tokyo, and CREST, JSTBell Laboratories, Lucent TechnologiesISSP, University of Tokyo, and CREST, JSTBell Laboratories, Lucent TechnologiesISSP, University of Tokyo, and CREST, JSTTCM group, Cavendish Laboratory, University of Cambridge
物理学光电子技术半导体技术
Hirotake Itoh,Ken W. West,Hidefumi Akiyama,Peter B. Littlewood,Yuhei Hayamizu,Loren N. Pfeiffer,Masahiro Yoshita,Marzena H. Szymanska.Polarization-dependent photoluminescence-excitation spectra of one-dimensional exciton and continuum states in T-shaped quantum wires[EB/OL].(2003-03-17)[2025-05-18].https://arxiv.org/abs/cond-mat/0303322.点此复制
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