Electrical and optical switching in the bistable regime of an electrically injected polariton laser
Electrical and optical switching in the bistable regime of an electrically injected polariton laser
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DOI：
10.1103/physrevb.96.041301
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发表时间：
2017-07-10
影响因子：
3.7
通讯作者：
Hoefling, S.
中科院分区：
文献类型：
--
作者：
Klaas, M.;Sigurdsson, H.;Hoefling, S.
本文报道了电泵浦极化激元激光器双稳区域的电感应光诱导开关。通过在系统的电泵中增加受控噪声，可以观察到电开关效果。噪声会影响双稳器件的磁滞特性，并决定其应用的稳健性。我们发现，在一定的噪声水平下，系统的双稳态猝灭，系统的输出变为单稳态，系统的磁滞宽度对称地以线性关系减小。此外，我们还探索了通过非共振光脉冲在两个双稳分支之间切换的可能性。我们的实验结果可以用一组速率方程来描述，该方程用附加的噪声项来模拟种群动力学。
We report on electrically and nonresonant optically induced switching in the bistable regime of an electrically pumped polariton laser. Electrical switching effects can be observed by adding controlled noise in the electrical pump of the system. Noise is expected to influence the hysteresis characteristics of a bistable device and determines its application robustness. We find that the hysteresis width decreases symmetrically with a linear dependency until we observe a quenching of the bistability at a certain noise level and the output of the system becomes monostable. Furthermore, we explore the possibility to switch between the two bistable branches by a nonresonant optical pulse. Our experimental findings can be described by a set of rate equations modeling the population dynamics with additional noise terms.