Structural, dielectric and optical properties of Ta2O5-Bi2O3-P2O5 phosphate glassesMohamed Laourayed, Yasmina Alaoui, Asmae Er-rafai, Mouad El Mouzahim, Mouloud El Moudane, Mohammed Abid, Mestapha Beraich, Abdellah Guenbour and Abdelkbir BellaouchouEur. Phys. J. Appl. Phys., 97 (2022) 49DOI: https://doi.org/10.1051/epjap/2022220138