Photon-field-shape effects on Rabi splitting energies in CuCl microcavitiesToshiki Kawase, Kenichi Miyazaki, DaeGwi Kim and Masaaki NakayamaEur. Phys. J. B, 86 2 (2013) 69DOI: https://doi.org/10.1140/epjb/e2012-30505-4