Planar waveguide laser at 705 nm based on Eu:KY(WO4)2 epitaxial layer Amandine Baillard, Ji Eun Bae, Pavel Loiko, Rosa Maria Solé, Magdalena Aguiló, Francesc Díaz, Gurvan Brasse, Xavier Mateos and Patrice Camy EPJ Web Conf., 307 (2024) 02010 Published online: 18 October 2024 DOI: 10.1051/epjconf/202430702010