Jamadi O, Reveret F, Disseix P, Medard F, Leymarie J, Moreau A, Solnyshkov D, Deparis C, Leroux M, Cambril E, Bouchoule S, Zuniga-Perez J, Malpuech G
1Institut Pascal, PHOTON-N2, Université Clermont Auvergne, CNRS, SIGMA Clermont, F-63000 Clermont-Ferrand, France.
2UCA, CRHEA-CNRS, Valbonne, F-06560 France.
Light Sci Appl. 2018 Oct 31;7:82. doi: 10.1038/s41377-018-0084-z. eCollection 2018.
We demonstrate edge-emitting exciton-polariton (polariton) laser operation from 5 to 300 K and polariton amplifiers based on polariton modes within ZnO waveguides. The guided mode dispersion below and above the lasing threshold is directly measured using gratings placed on top of the sample, fully demonstrating the polaritonic nature of the lasing modes. The threshold is found to be smaller than that expected for radiative polaritons in planar ZnO microcavities below 150 K and comparable above. These results open up broad perspectives for guided polaritonics by enabling easier and more straightforward implementation of polariton integrated circuits that exploit fast propagating polaritons, and, possibly, topological protection.
我们展示了在5至300 K温度范围内的边缘发射激子极化激元（极化激元）激光操作以及基于ZnO波导内极化激元模式的极化激元放大器。使用放置在样品顶部的光栅直接测量了低于和高于激光阈值时的导模色散，充分证明了激光模式的极化激元特性。发现在150 K以下阈值小于平面ZnO微腔中辐射极化激元的预期阈值，而在150 K以上两者相当。这些结果为引导极化激元学开辟了广阔前景，通过实现利用快速传播极化激元以及可能的拓扑保护的极化激元集成电路更容易、更直接的实现。
