> Superradiance has since been demonstrated in a wide variety of physical and chemical systems, such as quantum dot arrays [4] and J-aggregates. [5] This effect has been used to produce a superradiant laser.
Superradiance in semiconductor optics -> Coherent effects in semiconductor optics > Superradiance of excitons: https://en.wikipedia.org/wiki/Coherent_effects_in_semiconduc...