Disorder, which qualitatively describes some measure of irregularities in spatial patterns, is
ubiquitous in many-body systems, equilibrium and non-equilibrium states of matter, network …

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 …

Chaotic semiconductor lasers have been widely investigated for generating unpredictable
random numbers, especially for lasers with external optical feedback. Nevertheless, chaotic …

Structured light refers to the ability to tailor optical patterns in all its degrees of freedom, from
conventional 2D transverse patterns to exotic forms of 3D, 4D, and even higher-dimensional …

Recently, disordered metasurfaces have attracted considerable interest due to their potential
applications in imaging, holography, and wavefront shaping. However, how to emerge long …

Since its invention, optical frequency comb has revolutionized a broad range of subjects
from metrology to spectroscopy. The recent development of microresonator-based frequency …

For photonic devices, structural disorder and light scattering have long been considered
annoying and detrimental features that were best avoided or minimized. This review shows …

Lasers have enabled scientific and technological progress, owing to their high brightness
and high coherence. However, the high spatial coherence of laser illumination is not always …

Non-Hermitian wave engineering has attracted a surge of interest in photonics in recent
years. Prominent non-Hermitian phenomena include coherent perfect absorption and its …

Structured light, as a general term for arbitrary states of amplitude, phase, and polarization in
optical fields, is highly topical because of a myriad of applications it has fostered. A …