BaMnSnS4 and BaCdGeS4: infrared nonlinear optical sulfides containing highly distorted motifs with centers of moderate electronegativity†‡
Abstract
IR NLO sulfides BaMnSnS4 and BaCdGeS4 exhibit significant SHG efficiencies (1.2 and 0.3AgGaS2) with phase-matching behavior and high laser-induced damage thresholds (10 and 13AgGaS2). Their strong SHG efficiencies mainly originate from SnS4 and GeS4 tetrahedra that are being modulated by highly distorted MnS4 and CdS4 tetrahedra.