379 citations · 1.8k across the 11 of their papers we have counts for
4 papers · 1 filter
Rotational Quantum Friction
Rongkuo Zhao, Alejandro Manjavacas, F. Javier García de Abajo +1
We investigate the frictional forces due to quantum fluctuations acting on a small sphere rotating near a surface. At zero temperature, we find the frictional force near a surface…
Optical forces in nanowire pairs and metamaterials
Rongkuo Zhao, Philippe Tassin, Thomas Koschny +1
We study the optical force arising when isolated gold nanowire pairs and metamaterials with a gold nanowire pair in the unit cell are illuminated with laser radiation. Firstly, we…
Conjugated gammadion chiral metamaterial with uniaxial optical activity and negative refractive index
R. Zhao, L. Zhang, J. Zhou +2
We demonstrate numerically and experimentally a conjugated gammadion chiral metamaterial that uniaxially exhibits huge optical activity and circular dichroism, and gives a negative…
Repulsive Casimir Force in Chiral Metamaterials
R. Zhao, J. Zhou, Th. Koschny +2
We demonstrate theoretically that one can obtain repulsive Casimir forces and stable nanolevitations by using chiral metamaterials. By extending the Lifshitz theory to treat chiral…