  We propose a complete superradiant and subradiant states that can be
manipulated and prepared in a three-dimensional atomic array. These subradiant
states can be realized by absorbing a single photon and imprinting the
spatially-dependent phases on the atomic system. We find that the collective
decay rates and associated cooperative Lamb shifts are highly dependent on the
phases we manage to imprint, and the subradiant state of long lifetime can be
found for various lattice spacings and atom numbers. We also investigate both
optically thin and thick atomic arrays, which can serve for systematic studies
of super- and sub-radiance. Our proposal offers an alternative scheme for
quantum memory of light in a three-dimensional array of two-level atoms, which
is applicable and potentially advantageous in quantum information processing.
