Rasta Ghasemi, Aloyse Degiron, Xavier Le Roux, Anatole Lupu, and André de Lustrac

Transformation optics allows one to design optical devices with unique properties, such as invisibility cloaks. However, the optical properties prescribed by transformation optics are usually difficult to fabricate, particularly at optical wavelengths. In this work, Ghasemi et al. demonstrate the control of both the permittivity and the permeability in the near infrared.