This work presents the design and commissioning of a new low-temperature Scanning Tunnelling
Microscope equipped with an innovative light collection setup using an integrated
micro-fabricated mirror tip. Commissioning experiments demonstrate the capabilities of this new
instrument and reproduce known effects regarding gap plasmons on noble-metal surfaces.
Furthermore different contrasts in the plasmon-mediated light emission from Cobalt
nano-islands on a Copper (111) substrate are reported.
