Fluorescent vibronic transitions in CaF2(Eu++)

Kaplyanskii, 1962, Optics and Spectroscopy, 13, 129 Runciman, 1963, J. Chem. Phys., 36, 279, 10.1063/1.1733484 Zakharchenya, 1963, Optics and Spectroscopy, 14, 163 R. Loudon, private communication. Loudon, 1964, 84, 379 Ananthanaryanan, 1962, Z. Phys., 167, 39, 10.1007/BF02144651 F. A. Johnson, private communication. Wood, 1962, Phys. Rev., 126, 2079, 10.1103/PhysRev.126.2079 Kiss, 1962, Phys. Rev., 127, 718, 10.1103/PhysRev.127.718 W. Hayes, G. T. Jones, H. Macdonald, R. J. Elliott and C. T. Senneti, Proc. Roy. Soc., to be published.