Time-Resolved Studies of a Rolled-Up Semiconductor Microtube Laser

Details Time-Resolved Studies of a Rolled-Up Semiconductor Microtube Laser Time-Resolved Studies of a Rolled-Up Semiconductor Microtube Laser

2009-11-04

arxiv.org/abs/0911.0761v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

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.

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