On gauge invariance and results for spin and orbital angular momenta and helicity densities in optical fields
The spin (sn) and orbital (ln) angular momenta and helicity (hn) densities of the electromagnetic fields are defined by introducing two types of electric (C) and magnetic (A) vector potentials defined as D = ∇ × C and B = ∇ × A for the electric (D) and magnetic (B) induction fields. The gauge invari...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Results in Optics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950121001280 |