Retraction notice to "Evaluation of optical and gamma ray shielding features for tungsten-based bismuth borate glasses" [Opt. Mater. 106C (2020) 109981]. - Abouhaswa, A.S.; Sayyed, M.I.; Altowyan, Abeer S.; Al-Hadeethi, Y.; Mahmoud, K.A. (Optical Materials, 2026)