Thermo-optical properties of iron-doped low silica calcium aluminosilicate glasses determined by photothermal methods R.K. Miura, P.T. Udo, J.H. Rohling, E.A. Falcão, A.N. Medina, J.R.D. Pereira, A.C. Bento, M.L. Baesso, S.L. Oliveira and L.A.O. Nunes J. Phys. IV France, 125 (2005) 197-199 DOI: 10.1051/jp4:2005125046