Tungsten has a relatively low reflectivity compared to other metals commonly used in microscale optics applications such as gold and silver. The reflectivity of tungsten in the visible range is about 50%, while that of gold and silver can be over 90% depending on the surface finish and wavelength of light. However, tungsten has other advantages such as high melting point, chemical inertness, and mechanical strength that make it a suitable material for some microscale optics applications.
