Refractive Index Sensor Based on Micro- Structured Optical Fibers with Using Finite Element Method. Iraqi Journal of Science, [S. l.], v. 59, n. 3C, p. 1577–1586, 2018. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/385.. Acesso em: 28 apr. 2025.