Study of ppLN crystals for sum frequency generation of CW laser demonstrating 20 nm tunability in the visible range from 616 to 636 nm, through temperature tuningRuizhe Gu, Giorgio Santarelli, Mathieu Chauvet, Florent Bassignot and Adèle HilicoEPJ Web Conf., 307 (2024) 04058DOI: https://doi.org/10.1051/epjconf/202430704058