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Lasing from a single quantum wire

Yuhei Hayamizu·Masahiro Yoshita·Shinichi Watanabe·Hidefumi Akiyama·Loren N. Pfeiffer·Ken W. West
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Abstract

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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Yuhei Hayamizu, Masahiro Yoshita, Shinichi Watanabe, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West. 2002-09-18. Lasing from a single quantum wire. https://doi.org/10.1063/1.1532111

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