Photospin-orbit coupling in photonic structures.
We show that the inclusion of nonlocality in the constitutive relations in photonic structures has important repercussions in their eigenmode configuration and distribution. In the case of optical activity, the primary manifestation of nonlocality, these features are traced to a photospin-orbit interaction analogous to the electron spin-orbit interaction in asymmetric semiconducting compounds; its impact can be assimilated to that of a magnetic field whose magnitude and direction follow that of the photon quasimomentum, with implications in photospin transport and photospintronics.
Jonsson
Fredrik
F
EPSRC Nanophotonics Portfolio Centre, School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom.
Flytzanis
Christos
C