Control of Rabi-splitting energies of exciton polaritons in CuI microcavities Masaaki Nakayama, Masanobu Kameda, Toshiki Kawase and DaeGwi Kim Eur. Phys. J. B, 86 2 (2013) 32 Published online: 04 February 2013 DOI: 10.1140/epjb/e2012-30503-6