Spin and momentum of the light fields in inhomogeneous dispersive media with application to surface plasmon-polariton waves
arXiv:1711.08874 · doi:10.3116/16091833/19/1/33/2018
Abstract
Following to the recently published approach [Phys. Rev. Lett. 119, 073901 (2017); New J. Phys., 123014 (2017)], we refine and accomplish the general scheme for the unified description of the momentum and angular momentum in complex media. The equations for the canonical (orbital) and spin linear momenta, orbital and spin angular momenta in a lossless inhomogeneous dispersive medium are presented in the compact form analogous to the Brillouin's relation for the energy. The results are applied to the surface plasmon-polariton (SPP) field, and the microscopic calculations support the phenomenological expectations. The refined general scheme correctly describes the unusual SPP properties (transverse spin, magnetization momentum) and additionally predicts the singular momentum contribution sharply localized at the metal-dielectric interface, which is confirmed by the microscopic analysis. The results can be useful in optical systems employing the structured light, especially for microoptics, plasmophotonics, optical sorting and micromanipulation.
19 pages, 2 figures. Presented at the Memorial Conference dedicated to Prof. A.E. Glauberman in Odessa National University 14 - 15 November 2017. 17 Dec 2020: 2 lines are added beneath Eq. (40), and the number of Eq. (55) is corrected
References in corpus (5)
- Electromagnetic Angular Momentum
- Electromagnetic Force and Momentum
- Transverse and longitudinal angular momenta of light
- Optical Momentum, Spin, and Angular Momentum in Dispersive Media
- Spin and momentum of the light fields in inhomogeneous dispersive media with application to surface plasmon-polariton waves
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- Microscopic analysis of the energy, momentum and spin distributions in a surface plasmon-polariton wave
- Electromagnetic dynamical characteristics of a surface plasmon-polariton
- Spectral singularity enhances transverse spin
- Electromagnetism at finite temperature: a density operator approach
- Extraordinary transverse spin: Hidden vorticity of the energy flow and momentum distributions in propagating light fields
- Energy and momentum of the surface plasmon-polariton supported by a thin metal film