Strong photoabsorption by a single-quantum wire in waveguide-transmission spectroscopy

Yasushi Takahashi, Yuhei Hayamizu, Hirotake Itoh, Masahiro Yoshita, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We measured the absorption spectrum of a single T-shaped 14×6 nm lateral-sized quantum wire embedded in an optical waveguide using waveguide-transmission spectroscopy at 5 K. In spite of its small volume, the one-dimensional-exciton ground state shows a large absorption coefficient of 80 cm-1, or a 98% absorption probability for a single pass of the 500 μm long waveguide.

Original languageEnglish
Article number243101
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number24
Publication statusPublished - 2005 Jun 13
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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