@article{LundtKlembtCherotchenkoetal.2016,
  author    = {Lundt, Nils and Klembt, Sebastian and Cherotchenko, Evgeniia and Betzold, Simon and Iff, Oliver and Nalitov, Anton V. and Klaas, Martin and Dietrich, Christof P. and Kavokin, Alexey V. and H{\"o}fling, Sven and Schneider, Christian},
  title     = {Room-temperature Tamm-plasmon exciton-polaritons with a WSe\(_{2}\) monolayer},
  series = {Nature Communications},
  volume    = {7},
  journal   = {Nature Communications},
  doi       = {10.1038/ncomms13328},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-169470},
  year      = {2016},
  abstract  = {Solid-state cavity quantum electrodynamics is a rapidly advancing field, which explores the frontiers of light-matter coupling. Metal-based approaches are of particular interest in this field, as they carry the potential to squeeze optical modes to spaces significantly below the diffraction limit. Transition metal dichalcogenides are ideally suited as the active material in cavity quantum electrodynamics, as they interact strongly with light at the ultimate monolayer limit. Here, we implement a Tamm-plasmon-polariton structure and study the coupling to a monolayer of WSe\(_{2}\), hosting highly stable excitons. Exciton-polariton formation at room temperature is manifested in the characteristic energy-momentum dispersion relation studied in photoluminescence, featuring an anti-crossing between the exciton and photon modes with a Rabi-splitting of 23.5 meV. Creating polaritonic quasiparticles in monolithic, compact architectures with atomic monolayers under ambient conditions is a crucial step towards the exploration of nonlinearities, macroscopic coherence and advanced spinor physics with novel, low-mass bosons.},
  language  = {en}
}
@article{DietrichSteudeTropfetal.2016,
  author    = {Dietrich, Christof P. and Steude, Anja and Tropf, Laura and Schubert, Marcel and Kronenberg, Nils M. and Ostermann, Kai and H{\"o}fling, Sven and Gather, Malte C.},
  title     = {An exciton-polariton laser based on biologically produced fluorescent protein},
  series = {Science Advances},
  volume    = {2},
  journal   = {Science Advances},
  number    = {8},
  doi       = {10.1126/sciadv.1600666},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-171305},
  pages     = {e1600666},
  year      = {2016},
  abstract  = {Under adequate conditions, cavity polaritons form a macroscopic coherent quantum state, known as polariton condensate. Compared to Wannier-Mott excitons in inorganic semiconductors, the localized Frenkel excitons in organic emitter materials show weaker interaction with each other but stronger coupling to light, which recently enabled the first realization of a polariton condensate at room temperature. However, this required ultrafast optical pumping, which limits the applications of organic polariton condensates. We demonstrate room temperature polariton condensates of cavity polaritons in simple laminated microcavities filled with biologically produced enhanced green fluorescent protein (eGFP). The unique molecular structure of eGFP prevents exciton annihilation even at high excitation densities, thus facilitating polariton condensation under conventional nanosecond pumping. Condensation is clearly evidenced by a distinct threshold, an interaction-induced blueshift of the condensate, long-range coherence, and the presence of a second threshold at higher excitation density that is associated with the onset of photon lasing.},
  language  = {en}
}