Abstract
A periodic micro structure of the cubic cavity of 6.0μm×6.0μm×6.0μm is built on an ultra violet curable resin by the UV nanoimprint method. A gold film is sputtered on the periodic micro structure. This method can manufacture the periodic micro structure with the metal surface on a large area at a lower cost than etching. It is measured that the maximum normal emissivity of the periodic micro structure is 0.6 near 10μm in the case of the gold film of 200 nm thick on the surface facing a sputter source. The periodic micro structure with the gold film contributes to the prevention of global warming.
