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Alpeggiani, F. (author), Bliokh, K. Y. (author), Nori, F. (author), Kuipers, L. (author)
Optical helicity density is usually discussed for monochromatic electromagnetic fields in free space. It plays an important role in the interaction with chiral molecules or nanoparticles. Here we introduce the optical helicity density in a dispersive isotropic medium. Our definition is consistent with biorthogonal Maxwell electromagnetism in...
journal article 2018
document
Picardi, M. F. (author), Bliokh, K. Y. (author), Rodríguez-Fortuño, J. F. (author), Alpeggiani, F. (author), Nori, F. (author)
Spin and orbital angular momenta (AM) of light are well studied for free-space electromagnetic fields, even nonparaxial. One of the important applications of these concepts is the information transfer using AM modes, often via optical fibers and other guiding systems. However, the self-consistent description of the spin and orbital AM of...
journal article 2018