Towards second-harmonic generation micropatterning of glass surface

Aurélien Delestre (1) , Michel Lahaye (1) , Evelyne Fargin (1) , Matthieu Bellec (2) , Arnaud Royon (2) , Lionel Canioni (2) , Marc Dussauze (3) , Frédéric Adamietz (3) , Vincent Rodriguez (3)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 CPMOH - Centre de physique moléculaire optique et hertzienne
3 ISM - Institut des Sciences Moléculaires

Thermal poling of sodium borophosphate niobium glasses, previously coated with a thin silver layer micropatterned by femtosecond laser irradiation, is demonstrated. The field-assisted ion-exchange process for fabricating planar surface in this glass substrate is analyzed. Inside the silver ablated lines obtained by femtosecond laser irradiation, we clearly observe a change in the distribution of the frozen electrostatic field that is modulated by the Ag⁺/Na⁺ ion-exchange process during the thermal poling.

Mots clés: Boron compounds; Dielectric polarisation; High-speed optical techniques; Ion exchange; Laser materials processing; Niobium compounds; Optical films; Optical glass; Optical harmonic generation; Phosphate glasses; Silver; Sodium compounds

Domaines: Matériaux

Aurélien Delestre, Michel Lahaye, Evelyne Fargin, Matthieu Bellec, Arnaud Royon, et al.. Towards second-harmonic generation micropatterning of glass surface. Applied Physics Letters, 2010, 96 (9), 091908 (3 p.). ⟨10.1063/1.3350895⟩. ⟨hal-00466928⟩