title: field optical and micro-luminescence investigations of femtosecond laser micro-structured Nd:YAG crystals.
abstract: We report on the in-depth micro-modifications induced by femtosecond laser ablation in Nd:YAG crystals. Near Field Optical experiments have revealed that, below the ablated volume, a permanent change in the Nd:YAG reflectivity, extending parallel to the irradiation direction, has been induced. Micro-luminescence experiments have provided experimental evidence that these permanent changes in the surface reflectivity are accompanied by strong changes in the luminescence properties of Nd(3+) ions revealing relevant micro structural modifications in the Nd:YAG system.
authors.forename: J
authors.initials: J
authors.lastname: Lamela
authors.forename: A
authors.initials: A
authors.lastname: Ródenas
authors.forename: D
authors.initials: D
authors.lastname: Jaque
authors.forename: F
authors.initials: F
authors.lastname: Jaque
authors.forename: G A
authors.initials: GA
authors.lastname: Torchia
authors.forename: C
authors.initials: C
authors.lastname: Mendez
authors.forename: L
authors.initials: L
authors.lastname: Roso