Herein is disclosed an optical device for directing electromagnetic radiation and a means for manufacturing the same. The optical device can include a total-internal-reflection (TIR) element which includes a TIR surface a TIR protective cap fused about the TIR element, thereby providing a liquid-free volume between the TIR surface and an internal surface of the TIR protective cap a sleeve element fused to a portion of the TIR protective cap, thereby providing at least one fluidic pathway between the sleeve element and the TIR protective cap, the at least one fluidic pathway adapted to carry a stream of a cooling fluid through the optical device during use and an optical pathway from the TIR surface to an external surface of the sleeve element where any of the at least one fluidic pathway does not cross the optical pathway.