Surface-enhanced Raman scattering activity of niobium surface after irradiation with femtosecond laser pulses

Ivanov, VG; Vlakhov, ES; Stan, GE; Zamfirescu, M; Albu, C; Mihailescu, N; Negut, I; Luculescu, C; Socol, M; Ristoscu, C; Mihailescu, IN