Second Harmonic Generation, Sum Frequency Generation, and χ (3) : Dissecting Environmental Interfaces with a Nonlinear Optical Swiss Army Knife

Tetragonal Ba2MgGe2O7 – a novel multifun

Tetragonal Ba2MgGe2O7 – a novel multifunctional optical crystal with numerous manifestations of nonlinear-laser effects: almost sesqui-octave Stokes and anti-Stokes combs and cascaded χ(3)↔χ(2) lasing with involved second and third harmonic generation

✍ A.A. Kaminskii; L. Bohatý; P. Becker; J. Liebertz; P. Held; H.J. Eichler; H. Rhe 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 794 KB

Melilite-type Ba 2 MgGe 2 O 7 was found to be an attractive, simultaneously χ (2) -and χ (3) -active nonlinear optical crystal. Under one-micron picosecond pumping we observed several manifestations of nonlinear interactions, namely almost sesqui-octave Stokes and anti-Stokes lasing combs, collinear