Although the concept of negative-index materials (NIMs) has existed for several decades, actual metamaterials with these properties were not fabricated until recently 1,2,3. The original proposal and ...

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact [email protected]. Back to Healio A 1-year interim analysis of an ...