Trigonal Na3Li(MoO4)2⋅6H2O – a new many-phonon SRS molybdate crystal offering numerous nonlinear-laser interactions: several cascaded lasing (χ(3) ↔ χ(2)) effects and more than sesqui-octave Stokes and anti-Stokes comb generation under one-micron picosecond pumping

Trigonal Na3Li(MoO4)2⋅6H2O was found to be an attractive, simultaneously χ(2)- and χ(3)-active nonlinear optical crystal. We investigated its basic optical properties and observed several nonlinear effects, namely many-phonon SRS, almost two-octave Stokes and anti-Stokes lasing combs, SHG, THG, and efficient cascaded (χ(3) ↔ χ(2))-generation, as well as SRS arising from nonlinear interaction of two different χ(3)-active vibrations. All recorded nonlinear-lasing components were identified and attributed to SRS-promoting vibration modes. A short review of nonlinear-laser molybdates is given.

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