Microscopy of electronic states contributing to lasing in ridge quantum-wire laser structure

Shinichi Watanabe, Shyun Koshiba, Masahiro Yoshita, Hiroyuki Sakaki, Motoyoshi Baba, Hidefumi Akiyama

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Distribution of electronic states inside ridge quantum-wire (QWR) laser cavity was investigated using spatially and spectrally resolved top-view photoluminescence (PL) imaging method. PL inhomogeneity in QWR has shown that the electronic states were perturbed by the fluctuation of vertical thickness in the scale of ∼nm, while the optical waveguide was not. The PL images of QWR were traced up to the lasing condition to examine the lasing origin.

Original languageEnglish
Pages (from-to)2190-2192
Number of pages3
JournalApplied Physics Letters
Issue number15
Publication statusPublished - 1999 Oct 11


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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