Nonlinear refraction in high terbium content borogermanate glass bulk and fiber - Henrique, Franciele Renata; Pelosi, André Gasparotto; Almeida, Juliana Mara Pinto de; Franco, Douglas Faza; Cocca, Leandro Henrique Zucolotto; Huaman, Jose Luis Clabel; Nalin, Marcelo; Mastelaro, Valmor Roberto; De Boni, Leonardo; Mendonça, Cleber Renato (Optical Materials, 2024)