Volume 68, Number 5, December 2004
|Page(s)||740 - 745|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||05 November 2004|
Laser emission of low-threshold excitation from nanowires
Beijing National Lab for Condensed Matter Physics Institute of Physics, CAS - Beijing 100080, PRC
Accepted: 12 October 2004
We prepared nanowires with a controlled reaction in an asymmetrical tube, the nanowire is composed with aligned QDs packing in the same crystal axis. An anomalous giant oscillator strength was observed in the absorption spectra of the nanowire sol at room temperature. This sol shows stimulated emission at the excitation of a CW - laser up to an excitation power of more than one hundred.
PACS: 78.67.Lt – Quantum wires / 71.36.+c – Polaritons (including photon-phonon and photon-magnon interactions) / 78.45.+h – Stimulated emission
© EDP Sciences, 2004
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