Controlling the various degrees‐of‐freedom (DoFs) of structured light at both quantum and
classical levels is of paramount importance in optics. It is a conventional paradigm to treat …

Vector beams, and in particular vector vortex beams, have found many applications in recent
times, both as classical fields and as quantum states. While much attention has focused on …

Vector beams, non-separable in spatial mode and polarisation, have emerged as enabling
tools in many diverse applications, from communication to imaging. This applicability has …

The concept of entanglement is so synonymous with quantum mechanics that the prefix
“quantum” is often deemed unnecessary; there is after all only quantum entanglement. But …

Fundamentally contradictory but inescapably joined dual attributes, wave and particle,
remain a conceptually unsettling element at the heart of quantum mechanics. It was a career …

We investigate the nonlinear mixing of orbital angular momentum in type-II second-harmonic
generation with arbitrary topological charges imprinted on two orthogonally polarized …

Quantum optics and classical optics are linked in ways that are becoming apparent as a
result of numerous recent detailed examinations of the relationships that elementary notions …

One of the most captivating properties of diffraction-free optical fields is their ability to
reconstruct upon propagation in the presence of an obstacle, both classically and in the …

In this review we discuss intriguing properties of apparently classical optical fields, that go
beyond purely classical context and allow us to speak about quantum characteristics of such …

The non-separability between the spatial and polarization Degrees of Freedom (DoF) of
complex vector light fields has drawn significant attention in recent times. Key to this is its …