Optically transparent
ceramic glass materials comprising a glassy phase containing a crystalline
tungsten bronze phase comprising nanoparticles and having the formula MxWO, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu and U, and where 0 < x < 1;
aluminosilicate and
zinc-
bismuth-borate glasses comprising at least one of Sm2O3, Pr2O3, and Er2O3 are also provided.