Table 1: EPR and optical parameters of the glass system (60- 𝑥 )Bi2O3-25ZnO-15B2O3- 𝑥 Li2O.

Parameters 𝑥 = 1 5 𝑥 = 1 0 𝑥 = 5 𝑥 = 0

𝑔 | | 2.3372.3322.3332.312
𝑔 2.1272.1272.0792.056
𝐴 | | × 1 0 4 ( c m 1 ) 16011410899
𝐴 × 1 0 4 ( c m 1 ) 49604855
𝜆 (nm)717712719727
Δ 𝐸 𝑥 𝑦 (cm−1)13947140441390813755
𝛼 2 0.8750.7430.7070.651
𝛽 2 1 0.8030.9390.9800.986
𝛽 2 0.6560.7970.8370.909
Γ 𝜎 (%)27566376
Γ 𝜋 (%)391232
Λ t h 0.9540.9630.9730.982