期刊
APPLIED PHYSICS LETTERS
卷 83, 期 10, 页码 2043-2045出版社
AMER INST PHYSICS
DOI: 10.1063/1.1604177
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We measured polarization-dependent photoluminescence-excitation spectra of highly uniform T-shaped quantum wires at 5 K. We attribute one peak to the one-dimensional- (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. (C) 2003 American Institute of Physics.
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