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 …

Entanglement is a quintessential quantum mechanical phenomenon with no classical
equivalent. First discussed by Einstein, Podolsky, and Rosen and formally introduced by …

Structured light has become topical of late, where controlling light in all its degrees of
freedom has offered novel states of light long predicted, enhanced functionality in …

Frequency encoding is quickly becoming an attractive prospect for quantum information
protocols owing to larger Hilbert spaces and increased resilience to noise compared to other …

The ideal photon-pair source for building up multi-qubit states needs to produce
indistinguishable photons with high efficiency. Indistinguishability is crucial for minimising …

Vector vortex beams (VVBs) have attracted significant attention in both classical and
quantum optics. Liquid crystal (LC), beyond its applications in information display, has …

Quantum light sources in the mid‐infrared (MIR) band play an important role in many
applications, such as quantum sensing, quantum imaging, and quantum communication …

Creation of entangled photon pairs is one of the key topics in contemporary quantum optics.
In the present article, we theoretically describe the generation of photon pairs in the process …

Hyperentanglement (HE), the simultaneous entanglement between two particles in more
than one degree of freedom, is relevant to both fundamental physics and quantum …

Vector modes are fully polarized modes of light with spatially varying polarization
distributions, and they have found widespread use in numerous applications such as …