Design and Synthesis of Neutral Density Filter in Visible Range for Color Sorting Applications. Indian Journal of Pure & Applied Physics (IJPAP), [S. l.], v. 62, n. 10, p. 932–939, 2024. DOI: 10.56042/ijpap.v62i10.8277. Disponível em: https://or.niscpr.res.in/index.php/IJPAP/article/view/8277. Acesso em: 13 may. 2026.