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PHYSICAL PROPERTIES OF PbO-ZnO-P2O5 GLASSES II. REFRACTIVE INDEX AND OPTICAL PROPERTIES

H. Tichá1,* , J. Schwarz1, L. Tichý2, R. Mertens3

Affiliation

  1. University of Pardubice, Faculty of Chemical Technology, 532 10 Pardubice, Czech Republic
  2. Joint Laboratory of Solid State Chemistry of the Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic
  3. RUCA, University of Antwerp, B-2020 Antwerp, Belgium

Abstract

Phosphate glasses of composition x PbO – 10 ZnO - (90-x) P2O5, 30 £ x(mol. %) £ 55 (series A); 50 PbO –x ZnO – (50-x) P2O5, 0 £ x(mol %) £ 20 (series B); and x PbO – (60 – x) ZnO - 40 P2O5, 0 £ x(mol %) £ 60 (series C), were investigated. Experimental values of the refractive index (n) [1.59 £ n £ 1.87] were compared with the calculated values of n and good results were obtained using the Effective Medium Theory. Optical gap (Eg) varies in the region: 4.6 £ Eg[eV], 300 K £ 4.98, the temperature coefficient b of the optical gap was found around 6.7x10-4 [eV/K]..

Keywords

Phosphate glasses, Optical properties, Refractive index.

Submitted at: April 27, 2004
Accepted at: June 22, 2004

Citation

H. Tichá, J. Schwarz, L. Tichý, R. Mertens, PHYSICAL PROPERTIES OF PbO-ZnO-P2O5 GLASSES II. REFRACTIVE INDEX AND OPTICAL PROPERTIES, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 3, pp. 747-753 (2004)