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Electromagnetic stress at the boundary: Photon pressure or tension?

  • 发布时间:2020-05-16
  • 点击次数:
  • 发表刊物:Science advances
  • 摘要:It is well known that incident photons carrying momentum ℏk exert a positive photon pressure. But if light is impinging from a negative refractive medium in which ℏk is directed toward the source of radiation, should light exert a photon “tension” instead of a photon pressure? Using an ab initio method that takes the underlying microstructure of a material into account, we find that when an electromagnetic wave propagates from one material into another, the electromagnetic stress at the boundary is, in fact, indeterminate if only the macroscopic parameters are specified. Light can either pull…
  • 论文类型:期刊论文
  • 卷号:2
  • 期号:3
  • 页面范围:e1501485
  • 是否译文:

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