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Strong photo-absorption 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
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Abstract

We measured the absorption spectrum of a single T-shaped, 14x6 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, or a 98 % absorption probability for a single pass of the 500-um-long waveguide.

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Yasushi Takahashi, Yuhei Hayamizu, Hirotake Itoh, Masahiro Yoshita, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West. 2005-02-15. Strong photo-absorption by a single quantum wire in waveguide-transmission spectroscopy. https://doi.org/10.1063/1.1947902

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