We report on lasing in rolled-up microtube resonators. Time-resolved studies on these semiconductor lasers containing GaAs quantum wells as optical gain material reveal particularly fast turn-on-times and short pulse emissions above the threshold. We observe a strong red-shift of the laser mode during the pulse emission which is compared to the time evolution of the charge-carrier density calculated by rate equations.
@article{arxiv.0911.0761,
title = {Time-Resolved Studies of a Rolled-Up Semiconductor Microtube Laser},
author = {Ch. Strelow and M. Sauer and S. Fehringer and T. Korn and C. Schüller and A. Stemmann and Ch. Heyn and D. Heitmann and T. Kipp},
journal= {arXiv preprint arXiv:0911.0761},
year = {2015}
}