7 papers
Time diffraction of optical helicity
Alex J. Vernon, Jingyi Wu, Anton Y. Bykov +4
If in a classic double-slit interference experiment the light that passes though one slit is in an orthogonal polarisation state to that of the second slit, no visible interference…
Vortex formation around islands in random waves
Alex J. Vernon, Junyi Ye, Wenzhe Liu +2
Wave vortices are fundamental topological features of interference fields, occurring at nodal points where the wave amplitude vanishes. A distinct class of vortices can instead for…
Acoustic Chirality
Alex J. Vernon, Konstantin Y. Bliokh
We reveal a previously unknown continuous symmetry and conservation law in the equations of linear isotropic elasticity, which describe the chirality of elastic waves. We show that…
Dipole light-matter interactions in the bispinor formalism
Sebastian Golat, Alex J. Vernon, Francisco J. RodrÃguez-Fortuño
The conventional formulation of power absorption, optical forces, and torques on dipolar particles involve lenghty and cumbersome expressions that obscure their shared physical ori…
Polarisation Singularities of Gravitational Waves
Claire Rigouzzo, Sebastian Golat, Alex J. Vernon +3
Departure from idealised plane waves gives rise to intricate geometric structures in wave fields. One such structure is the polarisation singularity, which emerges when multiple mo…
Electric-Magnetic Geometric Phase
Alex J. Vernon, Konstantin Y. Bliokh
Geometric phases play an enormous role in optics and are generally associated with the evolution of light's polarization state on the Poincaré sphere, or its spin on the sphere of…