The growing maturity of nanofabrication has ushered massive sophisticated optical
structures available on a photonic chip. The integration of subwavelength-structured …

Structured light, especially beams carrying orbital angular momentum (OAM), has gained
much interest due to its unique amplitude and phase structures. In terms of communication …

Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension
of light waves into a helical phase structure, has given rise to many applications in optical …

Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

Structured light refers to the generation and application of custom light fields. As the tools
and technology to create and detect structured light have evolved, steadily the applications …

Bessel beam featured with self-healing is essential to the optical sensing applications in the
obstacle scattering environment. Integrated on-chip generation of the Bessel beam …

An optical vortex having an isolated point singularity is associated with the spatial structure
of light waves. A polarization vortex (vector beam) with a polarization singularity has …

Orbital angular momentum (OAM), which describes the “phase twist”(helical phase pattern)
of light beams, has recently gained interest due to its potential applications in many diverse …

Quantum key distribution (QKD) systems often rely on polarization of light for encoding, thus
limiting the amount of information that can be sent per photon and placing tight bounds on …

Time, polarization, and wavelength multiplexing schemes have been used to satisfy the
growing need of transmission capacity. Using space as a new dimension for communication …