Tunable femtosecond nonlinear absorption and optical limiting thresholds of La2O3-B2O3 glasses by controlling the borate structural units - Jagannath, G.; Gaddam, Anuraag; Rao, S. Venugopal; Agarkov, D. A.; Korableva, G. M.; Ghosh, Manasi; Dey, Krishna Kishor; Ferreira, José M. F.; Allu, Amarnath R. (Scripta Materialia, 2022)