Maximum intensity determination of beam waist in BBO optical nonlinear crystal using single harmonic generation. Periodicals of Engineering and Natural Sciences, [S. l.], v. 10, n. 4, p. 73–78, 2022. DOI: 10.21533/pen.v10.i4.683. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/683. Acesso em: 30 apr. 2026.