Dispersion and Loss in a Hopfield Dielectric
Dispersion and Loss in a Hopfield Dielectric
复制标题
DOI：
10.1209/0295-5075/18/6/003
复制
发表时间：
1992-03
期刊：
影响因子：
1.8
通讯作者：
B. Huttner;S. Barnett
中科院分区：
文献类型：
--
作者：
B. Huttner;S. Barnett
我们为线性电介质中的电磁场开发了一种完全规范的量化方案，包括色散和损耗。该方案基于电介质的霍普菲尔德模型，其中介质由许多相互作用的物质场表示。明确导出了色散和吸收之间的关系，如 Kramers-Kronig 关系所示。我们获得了介质中电磁场的简单表达式，并展示了如何导出复杂的波矢量，即使在量子场的情况下也是如此。
We develop a fully canonical quantization scheme for the electromagnetic field in linear dielectrics, including dispersion and losses. This scheme is based on the Hopfield model of a dielectric, where the medium is represented by a number of interacting matter fields. The relationship between dispersion and absorption, as expressed by the Kramers-Kronig relations, is explicitly derived. We obtain simple expressions for the electromagnetic field in the medium and show how a complex wave vector can be derived, even in the case of a quantized field.