Optimizing Kerr nonlinearity in tapered optical nanofibers through nonlinear liquid immersionOussama Laouedj, Abderrahim Azzoune, Hamza Gouasmia, Hocine Medjadba and Sylvie LebrunEPJ Web Conf., 335 (2025) 07014DOI: https://doi.org/10.1051/epjconf/202533507014