Repulsive Casimir Force in Chiral Metamaterials
|Title||Repulsive Casimir Force in Chiral Metamaterials|
|Publication Type||Journal Article|
|Year of Publication||2009|
|Authors||Zhao R, Zhou J, Koschny T, Economou EN, Soukoulis CM|
|Journal Title||Physical Review Letters|
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 metamaterials, we find that a repulsive force and a minimum of the interaction energy possibly exist for strong chirality, under realistic frequency dependencies and correct limiting values (for zero and infinite frequencies) of the permittivity, permeability, and chiral coefficients.
|URL||<Go to ISI>://000269639800024|