Code to calculate optical properties for plasmas in a wide range of densities R. Rodríguez, J.M. Gil, R. Florido, J.G. Rubiano, P. Martel and E. Mínguez J. Phys. IV France, 133 (2006) 981-984 Published online: 16 June 2006 DOI: 10.1051/jp4:2006133197