[Sb2O3](x) [Al2O3](y - x) composite influence on Ho2O3 doped PbO - SiO2 glasses for optical use

The glasses of the composition [Sb2O3x] [Al2O3](y-x): [Ho2O3](0.1) [PbO](30) [SiO2](59).(9) have chosen for present synthesis (where, 0 <= x <= 10 ; 10 >= y >= 0; step size = 2 mo10/0) are prepared. Prepared samples are characterized by both structural (FT-IR, DTA, EDS, SEM & XRD) & optical (TL, UV & PL) techniques. The evolutions of YM, MH, GTT & Thermal stability suggested that the samples prepared are mechanically hard. TL studies under 30 min of gamma - irradiation are reported. Which are found to be best for the sample 'Sb-6' exhibiting good SSF (u = 0.384) and low AE's (E-tau = 1.871, E-delta = 1.658 & E-omega = 1.809) under 30 min of gamma - irradiation might be good TL asset. Judd - Ofelt theory is used to study the UV spectrum of these glass series of materials. All radiative parameters corresponding to these glass materials calculated. Radiative out comes such as J-O [Omega(2) (7.51), Omega(4) (6.71) & Omega(6) (4.01)1 x 10(-20) cm(2)], SQF (chi = 0.892), EBW (Delta lambda = 28 nm), SECS (sigma = 1.44 x 10(-20) cm(2)), TP (A(t) = 3489 s(-1)), RLT (tau(rad) = 185 s(-1)) and BR (beta = 61 %) parameters are suggesting that the sample code 'Sb-6' might be useful luminescent resource.