Technology Report Published on 29 May 2015 Optogenetic activation of neocortical neurons in vivo with a sapphire-based micro-scale LED probe Niall McAlindenErdan GuMartin D. DawsonShuzo SakataKeith Mathieson Frontiers in Neural Circuits doi 10.3389/fncir.2015.00025 12,989 views 86 citations