BACKGROUND The generation and control of coherent electromagnetic waves, such as
those provided by electronic oscillators in the radio frequency domain or lasers in the optical …

In this roadmap article, we have focused on the most recent advances in terahertz (THz)
imaging with particular attention paid to the optimization and miniaturization of the THz …

A laser frequency comb is a broad spectrum composed of equidistant narrow lines. Initially
invented for frequency metrology, such combs enable new approaches to spectroscopy over …

Optical neural networks (ONNs), or optical neuromorphic hardware accelerators, have the
potential to dramatically enhance the computing power and energy efficiency of mainstream …

We review recent work on broadband RF channelizers based on integrated optical
frequency Kerr micro-combs combined with passive micro-ring resonator filters, with …

Optical frequency combs consist of equally spaced discrete optical frequency components
and are essential tools for optical communication, precision metrology, timing and …

Photoacoustic dual-comb spectroscopy (DCS), converting spectral information in the optical
frequency domain to the audio frequency domain via multi-heterodyne beating, enables …

Over the past decade, optical frequency combs generated by high-Q microresonators, or
optical microcombs, which feature compact device footprints, low power consumption, and …

We report a broadband RF channelizer based on an integrated optical frequency Kerr micro-
comb source, with an RF channelizing bandwidth of 90 GHz, a high RF spectral slice …

Dual-comb spectroscopy is an emerging new spectroscopic tool that exploits the frequency
resolution, frequency accuracy, broad bandwidth, and brightness of frequency combs for …