https://research.ibm.com/publications/phase-matched-second-harmonic-generation-at-440-nm-in-a-linbolessinfgreater3lessinfgreater-gdlessinfgreater3lessinfgreatergalessinfgreater5lessinfgreaterolessinfgreater12lessinfgreater-waveguide-with-a-tunable-stimulated-raman-source
Phase-matched second-harmonic generation at 440 nm in a LiNbO3 -Gd3Ga5O12 waveguide with a tunable...