Er${}_{\mathrm{Al}}$:Al${}_2$O${}_3$ for Telecom-Band Photonics: Electronic Structure and Optical Properties

Mahtab A. Khan, Jayden D. Craft, Hari P. Paudel +3

Er-doped Al${}_2$O${}_3$ is a promising host for telecom-band integrated photonics. Here we combine ab initio calculations with a symmetry-resolved analysis to elucidate substitutional…