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

Lithium niobate (LN), first synthesized 70 years ago, has been widely used in diverse
applications ranging from communications to quantum optics. These high-volume …

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 …

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 atomic clocks represent the state of the art in the frontier of modern measurement
science. In this article a detailed review on the development of optical atomic clocks that are …

Micro-combs-optical frequency combs generated by integrated micro-cavity resonators–offer
the full potential of their bulk counterparts, but in an integrated footprint. They have enabled …

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

Optical frequency combs were developed nearly two decades ago to support the world's
most precise atomic clocks. Acting as precision optical synthesizers, frequency combs …

This article reviews recent developments in tests of fundamental physics using atoms and
molecules, including the subjects of parity violation, searches for permanent electric dipole …

Laser frequency combs are coherent light sources that emit a broad spectrum of discrete,
evenly spaced narrow lines whose absolute frequency can be measured to within the …