field optical and micro-luminescence investigations of femtosecond laser micro-structured Nd:YAG crystals.
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.
Lamela
J
J
Ródenas
A
A
Jaque
D
D
Jaque
F
F
Torchia
G A
GA
Mendez
C
C
Roso
L
L