@article{bibcite_8259,
  author = {M. Ramezani and A. Halpin and A. I. Fernandez and J. Feist and S. R. K. Rodriguez and F. J. Garcia-Vidal and J. Gomez Rivas},
  title = {Plasmon-exciton-polariton lasing},
  abstract = {Metallic nanostructures provide a toolkit for the generation of coherent light below the diffraction limit. Plasmonic-based lasing relies on the population inversion of emitters (such as organic fluorophores) along with feedback provided by plasmonic resonances. In this regime, known as weak light{\textendash}matter coupling, the radiative characteristics of the system can be described by the Purcell effect. Strong light{\textendash}matter coupling between the molecular excitons and electromagnetic field generated by the plasmonic structures leads to the formation of hybrid quasi-particles known as plasmon-exciton-polaritons (PEPs). Due to the bosonic character of these quasi-particles, exciton-polariton condensation can lead to laser-like emission at much lower threshold powers than in conventional photon lasers. Here, we observe PEP lasing through a dark plasmonic mode in an array of metallic nanoparticles with a low threshold in an optically pumped organic system. Interestingly, the threshold power of the lasing is reduced by increasing the degree of light{\textendash}matter coupling in spite of the degradation of the quantum efficiency of the active material, highlighting the ultrafast dynamic responsible for the lasing, i.e., stimulated scattering. These results demonstrate a unique room-temperature platform for exploring the physics of exciton-polaritons in an open-cavity architecture and pave the road toward the integration of this on-chip lasing device with the current photonics and active metamaterial planar technologies.},
  year = {2017},
  journal = {Optica},
  volume = {4},
  pages = {31-37},
  month = {01/2017},
  publisher = {OSA},
  doi = {10.1364/OPTICA.4.000031},
  language = {eng},
}