Lasing from a single quantum wire

Details Lasing from a single quantum wire Lasing from a single quantum wire

2002-09-18

arxiv.org/abs/cond-mat/0209440v1

Physics

Condensed Matter

Materials Science

4 pages including 4 figures

Scientific paper

10.1063/1.1532111

A laser with an active volume consisting of only a single quantum wire in the 1-dimensional (1-D) ground state is demonstrated. The single wire is formed quantum-mechanically at the T-intersection of a 14 nm Al_{0.07}Ga_{0.93}As quantum well and a 6 nm GaAs quantum well, and is embedded in a 1-D single-mode optical waveguide. We observe single-mode lasing from the quantum wire ground state by optical pumping. The laser operates from 5 to 60 K, and has a low threshold pumping power of 5 mW at 5 K.

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