Abstract
We measured the absorption spectra of T-shaped quantum wires at room temperature using waveguide-transmission spectroscopy. A strong and narrow room-temperature one-dimensional-exciton absorption peak was observed, which indicates a peak modal absorption coefficient of 160cm−1 per 20 wires with a Γ-factor of 4.3×10−3, a width of 7.2meV, and strong polarization anisotropy.
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