期刊
JOURNAL OF MODERN OPTICS
卷 57, 期 14-15, 页码 1339-1343出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500341003654427
关键词
optical angular momentum
类别
资金
- UK Engineering and Physical Sciences Research Council (EPSRC)
- Czech Republic [MSM 684077039, LC06002]
- Royal Society
- Wolfson Foundation
- EPSRC [EP/G011567/1] Funding Source: UKRI
The association of spin and orbital angular momenta of light with its polarization and helical phase fronts is now well established. The problems in linking this with electromagnetic theory, as expressed in Maxwell's equations, are rather less well known. We present a simple analysis of the problems involved in defining spin and orbital angular momenta for electromagnetic fields and discuss some of the remaining challenges. Crucial to our investigation is the duplex symmetry between the electric and magnetic fields.
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