@article{BeierleinEgorovHarderetal.2021,
  author    = {Beierlein, J. and Egorov, O. A. and Harder, T. H. and Gagel, P. and Emmerling, M. and Schneider, C. and H{\"o}fling, S. and Peschel, U. and Klembt, S.},
  title     = {Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array},
  series = {Advanced Optical Materials},
  volume    = {9},
  journal   = {Advanced Optical Materials},
  number    = {13},
  doi       = {10.1002/adom.202100126},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239814},
  year      = {2021},
  abstract  = {Bloch oscillations are a phenomenon well known from quantum mechanics where electrons in a lattice experience an oscillatory motion in the presence of an electric field gradient. Here, the authors report on Bloch oscillations of hybrid light-matter particles, called exciton-polaritons (polaritons), being confined in an array of coupled microcavity waveguides. To this end, the waveguide widths and their mutual couplings are carefully designed such that a constant energy gradient is induced perpendicular to the direction of motion of the propagating polaritons. This technique allows us to directly observe and study Bloch oscillations in real- and momentum-space. Furthermore, the experimental findings are supported by numerical simulations based on a modified Gross-Pitaevskii approach. This work provides an important transfer of basic concepts of quantum mechanics to integrated solid state devices, using quantum fluids of light.},
  language  = {en}
}