Thermally resistant waveguides fabricated in Nd:YAG ceramics by crossing femtosecond damage filaments - Benayas A; Silva W; Jacinto C; Cantelar E; Lamela J; Jaque F; De Vázquez Aldana J; Torchia G; Roso L; Kaminskii A; Jaque D (Optics Letters, 2010)