Optical microcombs represent a new paradigm for generating laser frequency combs based
on compact chip-scale devices, which have underpinned many modern technological …

Many breakthroughs in technologies are closely associated with the deep understanding
and development of new material platforms. As the main material used in microelectronics …

We introduce the refractiveindex. info database, a comprehensive open-source repository
containing optical constants for a wide array of materials, and describe in detail the …

Optical quantum information processing will require highly efficient photonic circuits to
connect quantum nodes on-chip and across long distances. This entails the efficient …

In the last two decades, bulk, homoepitaxial, and heteroepitaxial growth of silicon carbide
(SiC) has witnessed many advances, giving rise to electronic devices widely used in high …

The development of parametric devices down-converting the laser frequency to the mid-
infrared (3–30 µm) based on non-oxide nonlinear optical crystals is reviewed. Such devices …

Photonic integrated circuits (PICs) based on lithographically patterned waveguides provide
a scalable approach for manipulating photonic bits, enabling seminal demonstrations of a …

The realization of high-quality (Q) resonators regardless of the underpinning material
platforms has been a ceaseless pursuit, because the high-Q resonators provide an extreme …

Silicon carbide (SiC) is rapidly emerging as a leading platform for the implementation of
nonlinear and quantum photonics. Here, we find that commercial SiC, which hosts a variety …

Traditional infrared (IR) nonlinear optical (NLO) materials such as AgGaS2 are crucial to key
devices for solid‐state lasers, however, low laser damage thresholds intrinsically hinder …