Study of vibrational spectroscopy, linear and non-linear optical properties of Sm3+ ions doped BaO–ZnO–B2O3 glasses

Analysis of glass forming ability using percolation concept and tunability of physical parameters of a-Ge12Se76-xAs12Bixglassy semiconductors

“…Most of the compositions show positive values for V e also implying loosely packed structures. This is in fair agreement with the change in compactness values and the results reported by other workers on semiconducting glassy matrix [56].…”

Nonlinear Optical Limiting and Radiation Shielding Characteristics of Sm2O3 Doped Cadmium Sodium Lithium Borate Glasses

“…This results in an increase of the density values of the glass as the Sm 2 O 3 doping elevated to higher level. Increase of molar volume of the glass as whole with Sm 2 O 3 content is attributed to the modifier role of Sm 3+ [ 16 ]. These attenuations such as an increase in density and an increase in molar volume of the glass as a whole with Sm 2 O 3 content are observed because of the glass network fragmentation between cations (i.e., B 3+ ) and oxygen anions, which results in the generation of NBOs in the structure when the Sm 2 O 3 is loaded for B 2 O 3 as the modifier [ 39 ].…”

“…These groups comprise the delocalized π electron cloud, due which it is possible to achieve enhancement in the optical nonlinearities [ 14 ]. Furthermore, in recent years the incorporation of “rare earth ions” (REI) in the parent glass composition and correlating the featured optical nonlinearity of glass hosts to higher values has been established [ 15 , 16 , 17 ]. Kirti Nanda et al [ 16 ] have studied the effect of Sm 3+ ions on NLO and vibrational spectroscopic features of borate-based glasses.…”

“…Furthermore, in recent years the incorporation of “rare earth ions” (REI) in the parent glass composition and correlating the featured optical nonlinearity of glass hosts to higher values has been established [ 15 , 16 , 17 ]. Kirti Nanda et al [ 16 ] have studied the effect of Sm 3+ ions on NLO and vibrational spectroscopic features of borate-based glasses. They have elucidated that NLO features are improved with Sm 2 O 3 content due to increase of polarizability of glass as a whole, owing to the formation of non-bridging oxygens (NBOs) on incorporating the highly polarizable Sm 3+ ions to the borate glass composition.…”

“…They have also highlighted using vibrational spectroscopy for the formation of NBOs in the glass structure on incorporation of Sm 3+ to the glass composition. The reason for selecting this route (doping of REI to tune the NLO characteristics) is due to the fact that the REI are highly polarizable, due to which the REI causes high depolymerization in the structure [ 16 ]. Since the NLO susceptibility (χ) is related to the depolymerization of structure, the improvement can be expected.…”