Bertil Nistad

Causality and electromagnetic properties of active media.

Johannes Skaar, J. Skaar, Bertil Nistad, 2007, Physical review. E, Statistical, nonlinear, and soft matter physics.

Dispersion properties of planar Bragg waveguides

Johannes Skaar, Magnus W. Haakestad, J. Skaar, 2006 .

Simulations and realizations of active right-handed metamaterials with negative refractive index.

J. Skaar, Bertil Nistad, 2007, Optics express.