Processing of materials by ultrashort laser pulses has evolved significantly over the last
decade and is starting to reveal its scientific, technological and industrial potential. In …

The unique characteristics of ultrafast lasers, such as picosecond and femtosecond lasers,
have opened up new avenues in materials processing that employ ultrashort pulse widths …

Free-space optical communication is a promising means to establish versatile, secure and
high-bandwidth communication between mobile nodes for many critical applications. While …

Recent advances in the research of vortex beams, structured beams carrying orbital angular
momentum (OAM), have revolutionized the applications of light beams, such as advanced …

Axicon is a versatile optical element for forming a zero-order Bessel beam, including high-
power laser radiation schemes. Nevertheless, it has drawbacks such as the produced …

Over the past two decades, femtosecond laser-induced periodic structures (femtosecond-
LIPSs) have become ubiquitous in a variety of materials, including metals, semiconductors …

The photonic spin Hall effect (SHE) in the reflection and refraction at an interface is very
weak because of the weak spin-orbit interaction. Here, we report the observation of a giant …

Computing metasurfaces are two-dimensional artificial nanostructures capable of
performing mathematical operations on the input electromagnetic field, including its …

Perfect vortex beams are the orbital angular momentum (OAM)-carrying beams with fixed
annular intensities, which provide a better source of OAM than traditional Laguerre …

Tomography is an informative imaging modality that is usually implemented by mechanical
scanning, owing to the limited depth-of-field (DOF) in conventional systems. However, recent …