Dielectric frame, Sellmeier equations, and phase-matching properties of the monoclinic acentric crystal GdCa4O(BO3)3

Feng Guo (1) , Patricia Segonds (1) , Bertrand Ménaert (2) , Jérôme Debray (2) , Gérard Aka (3) , Pascal Loiseau (3) , Benoit Boulanger (1)

1 NEEL - OPTIMA - Optique et Matériaux
2 NEEL - CrisMass - Cristaux massifs
3 LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris

We directly measured the phase-matching properties of the biaxial (GdCa4OBO3) 3 (GdCOB) crystal using the sphere method. We studied second-harmonic generation and difference frequency generation in two principal planes of the crystal. All these data allowed us to refine the Sellmeier equations of the three principal refractive indices. These equations are valid over the entire transparency range of GdCOB and then could be used to calculate the tuning curves of infrared optical parametric generation.

Domaines: Optique / photonique

Feng Guo, Patricia Segonds, Bertrand Ménaert, Jérôme Debray, Gérard Aka, et al.. Dielectric frame, Sellmeier equations, and phase-matching properties of the monoclinic acentric crystal GdCa4O(BO3)3. Optics Letters, 2016, 41 (22), pp.5290-5293. ⟨10.1364/OL.41.005290⟩. ⟨hal-01707102⟩