Optical properties of lead-tin fluoro phosphate glass doped with porphyrinmetallocomplexes

Tetraphenyl-porphine-tetrasulfonic acid (TPPS) and its complex were incorpo rated into a 52.2SnF(2)-32.1PO(5/1)-10.5SnO-5.1PbF(2) (in mol%) glass syste m using a conventional melting method at 450 degrees C. It was found that t he dye in the glass had not decomposed and the original structures of the d yes were preserved. However, the structure of TPPS changed from that in the aqueous solution because of the reaction with Sn in the matrix. A 2-photon hole burning (PHB) in glass samples was measured in samples of TPPS-Sn and TPPS acid TCPP bromide derivative (TPPCBB-Sn). The irradiation of an addit ional gating light increased the rate of hole formation. Part of the hole w as burnt by an electron transfer reaction to the bromide acceptor. (C) 1999 Elsevier Science B.V. All rights reserved.