BACKGROUND Optical vortices provide one of the promising solutions for enhancing the
capacity of data multiplexing to meet an unprecedented growth in big data and internet traffic …

Optical tweezers and associated manipulation tools in the far field have had a major impact
on scientific and engineering research by offering precise manipulation of small objects …

Interactions between light and matter play an instrumental role in spectroscopy, sensing,
quantum information processing and lasers. In most of these applications, light is considered …

At the interface of classical and quantum physics, the Maxwell and Schrödinger equations
describe how optical fields drive and control electronic phenomena to enable lightwave …

Nanophotonic platforms such as metasurfaces, achieving arbitrary phase profiles within
ultrathin thickness, emerge as miniaturized, ultracompact and kaleidoscopic optical vortex …

Progress in electron-beam spectroscopies has recently enabled the study of optical
excitations with combined space, energy and time resolution in the nanometre …

Surface plasmons (SPs) are electromagnetic surface waves that propagate at the interface
between a conductor and a dielectric. Due to their unique ability to concentrate light on two …

The present status and development of strong-field nano-optics, an emerging field of
nonlinear optics, is discussed. A nonperturbative regime of light-matter interactions is …

Topological defects play a key role in a variety of physical systems, ranging from high-
energy to solid-state physics. A skyrmion is a type of topological defect that has shown …

Plasmonics provides a possible route to overcome both the speed limitations of electronics
and the critical dimensions of photonics. We present an all-plasmonic 116–gigabits per …