Electromagnetic stress tensor for an amorphous metamaterial medium

Neng Wang, Shubo Wang, Tsz Fai Jack Ng*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

9 Citations (Scopus)


We analytically and numerically investigated the internal optical forces exerted by an electromagnetic wave inside an amorphous metamaterial medium. We derived, by using the principle of virtual work, the Helmholtz stress tensor, which takes into account the electrostriction effect. Several examples of amorphous media are considered, and different electromagnetic stress tensors, such as the Einstein-Laub tensor and Minkowski tensor, are also compared. It is concluded that the Helmholtz stress tensor is the appropriate tensor for such systems.

Original languageEnglish
Article number033839
JournalPhysical Review A
Issue number3
Publication statusPublished - 19 Mar 2018

Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Electromagnetic stress tensor for an amorphous metamaterial medium'. Together they form a unique fingerprint.

Cite this