Shining light on neutrino interactions

Liquid Argon Time Projection Chambers are becoming the go to detectors in precision neutrino physics. Using drifted ionization charge they provide unprecedented detail of reconstructing neutrino interactionsat the same time allowing the construction of very large detectors. Liquid argon is also a prolific scintillator. Up to now, this light has been mostly employed for trigger purposes. New detectors being built in the next couple of years (SBND), or in the next decade (DUNE), are developing new light collection schemes that could enhance position resolution, timing and calorimetry of neutrino events. I will present the status of the development of the light collection system for the SBND experiment, as well as the recent ideas in developing light collection systems for LArTPC detectors.