负折射率材料对Casimir效应的影响

Influence of negative refractive material on Casimir effect

研究了负折射率材料介质板间的Casimir效应.对于负折射率材料中由Drude-Lorentz型色散关系描述的介电常数和磁导率,色散曲线中负值频带的曲线结构由各色散吸收参数所决定,色散曲线负值频带宽度和负区域的深度等性质的变化影响了介质材料板的反射特性,进而对两材料板间的Casimir效应强弱起着重要的作用.

Three-dimensional Casimir force between two negative-refractive-material slabs is calculated.For the negative-refractive material characterized by dispersive permittivity and permeability of Drude-Lorentz type,the structure of negative refraction frequency band is determined by characteristic frequencies.The different width and depth of the negative refraction frequency bands correspond to reflection properties of different medium,and thus influences the magnitude of Casimir effect between the slabs.