Polarization-anisotropy of mid-infrared emission properties of Er3+ ions in YAlO3 crystal – INVITEDAhmed Nady, Florent Cassouret, Pavel Loiko, Simone Normani, Alain Braud, Weidong Chen, Valentin Petrov, Dunlu Sun, Peixiong Zhang, Bruno Viana, Ammar Hideur and Patrice CamyEPJ Web Conf., 287 (2023) 05010DOI: https://doi.org/10.1051/epjconf/202328705010