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 …

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 …

Frequency combs are optical spectra composed of a set of discrete equally spaced lines.
Such spectra can be generated by diverse sources such as mode-locked lasers, resonators …

The ability to control the instantaneous state of light, from high-energy pulses down to the
single-photon level, is an indispensable requirement in photonics. This has, for example …

Theories of planet formation predict that low-mass stars should rarely host exoplanets with
masses exceeding that of Neptune. We used radial velocity observations to detect a …

Nonlinear magnonics studies the nonlinear interaction between magnons and other
physical platforms (phonon, photon, qubit, spin texture) to generate novel magnon states for …

Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

Giant exoplanets orbiting close to their host stars are unlikely to have formed in their present
configurations. These 'hot Jupiter'planets are instead thought to have migrated inward from …

The warm Neptune GJ 3470b transits a nearby (d= 29 pc) bright slowly rotating M1. 5-dwarf
star. Using spectroscopic observations during two transits with the newly commissioned …

We present the detection of helium in the extended atmosphere of the sub-Saturn WASP-
107b using high-resolution (R≈ 25,000) near-infrared spectra from Keck II/Near Infrared …