Raman Gain in Transparent Nanostructured Glass-Ceramic Pasquale Pernice, Luigi Sirleto, Manuela Rossi, Alessandro Vergara, Rocco Di Girolamo, Claudio Imparato and Antonio Aronne EPJ Web Conf., 309 (2024) 09008 Published online: 31 October 2024 DOI: 10.1051/epjconf/202430909008