The commercial success of radio-frequency acoustic filters in wireless communication
systems has launched aluminum nitride (AlN) as one of the most widely used …

The experimental realization of a Kerr frequency comb represented the convergence of
research in materials, physics, and engineering. This symbiotic relationship continues to …

Frequency microcombs, alternative to mode-locked laser and fiber combs, enable miniature
rulers of light for applications including precision metrology, molecular fingerprinting and …

Integrated photonics plays a central role in modern science and technology, enabling
experiments from nonlinear science to quantum information, ultraprecise measurements and …

Nonlinear wave mixing in optical microresonators offers new perspectives to generate
compact optical-frequency microcombs, which enable an ever-growing number of …

The synthesis of ultralow-noise microwaves is of both scientific and technological relevance
for timing, metrology, communications and radio-astronomy. Today, the lowest reported …

Nonlinearity is a powerful determinant of physical systems. Controlling nonlinearity leads to
interesting states of matter and new applications. In optics, diverse families of continuous …

Nonlinearity in complex systems leads to pattern formation through fundamental interactions
between components. With integrated photonics, precision control of nonlinearity explores …

Stable microresonator Kerr soliton frequency combs in a III‐V platform (AlGaAs on SiO2) are
demonstrated through quenching of thermorefractive effects by cryogenic cooling to …

The measurement and stabilization of the carrier–envelope offset frequency f_CEO via self-
referencing is paramount for optical frequency comb generation, which has revolutionized …