Sensor technologies have improved the everyday life of human beings through their
applications in almost all fields. Sensors are devices that detect changes in the …

Globally, there is active development of photonic sensors incorporating multidisciplinary
research. The ultimate objective is to develop small, low-cost, sensitive, selective, quick …

Optical sensors play an increasingly important role in the development of medical diagnostic
devices. They can be very widely used to measure the physiology of the human body …

Tumors, irregularities, and malignancies of the brain are deemed lethal. If brain cancer
detection techniques are executed appropriately, precious lives might be saved. They …

The ability to detect low concentrations of analytes and in particular low‐abundance
biomarkers is of fundamental importance, eg, for early‐stage disease diagnosis. The …

Mid-infrared fiber sources, emitting between 2.5 µm and 5.0 µm, are interesting for their
great potential in several application fields such as material processing, biomedicine …

Compact and smart optical gas sensors have attracted significant attention over the past few
decades. Among the materials used for developing such gas sensors, group-IV materials …

Micro-/nanofibers (MNFs) are optical fibers with diameters close to or below the wavelength
of the guided light. These tiny fibers can offer engineerable waveguiding properties …

Micro/nanofibres (MNFs) are optical fibres with diameters close to or below the vacuum
wavelength of visible or near-infrared light. Due to its wavelength-or sub-wavelength scale …

In this opinion article, we briefly summarize some of the background materials and recent
developments in the field of temporal and spatiotemporal media and provide our opinion on …