  The Any Light Particle Search II (ALPS II) is an experiment that utilizes the
concept of resonant enhancement to improve on the sensitivity of traditional
light shining through a wall style experiments. These experiments attempt to
detect photons passing through an opaque wall by converting to relativistic
weakly interacting sub-eV particles and then reconverting back to photons. ALPS
II at DESY in Hamburg, Germany will use dually resonant optical cavities before
and after the wall to increase the probability of this interaction occurring.
This paper gives a technical overview and status report of the experiment.
