Quantization of the radiation field in an anisotropic dielectric medium

• 来源期刊: 中国物理B（英文版）
• 关键词: dispersion dieletric anisotropic dielectric noise current operator
• 年，卷（期）: 2009,（6）
• 页码范围: 2314-2318
• 页数: 5页
• 语种: 英文

摘要

There are both loss and dispersion characteristics for most dielectric media. In quantum theory the loss in medium is generally described by Langevin force in the Langevin noise (LN) scheme by which the quantization of the radiation field in various homogeneous absorbing dielectrics can be successfully actualized. However, it is invalid for the anisotropic dispersion medium. This paper extends the LN theory to an anisotropic dispersion medium and presented the quantization of the radiation field as well as the transformation relation between the homogeneous and anisotropic dispersion media.