The control of one light field by another, ultimately at the single photon level,,,,,,, is a
challenging task that has numerous interesting applications within nonlinear optics, and …

Storage and cooling of highly charged ions require ultra-high vacuum levels obtainable by
means of cryogenic methods. We have developed a linear Paul trap operating at 4 K …

Mechanical oscillators which respond to radiation pressure are a promising means of
transferring quantum information between light and matter. Optical–mechanical state swaps …

We use laser-cooled ion Coulomb crystals in the well-controlled environment of a harmonic
radiofrequency ion trap to investigate phase transitions and defect formation. Topological …

The nonlinear dynamics of large ion clouds (N≥ 256 ions) trapped in radio-frequency (rf)
traps and coupled to laser cooling give rise to a bistable behavior of the temperature …

The transmission of a probe field experiencing electromagnetically induced transparency
and optical switching in an atomic medium enclosed in an optical cavity is investigated …

A detailed description and theoretical analysis of experiments achieving coherent coupling
between an ion Coulomb crystal and an optical cavity field are presented. The various …

Light scattering by a periodic atomic array is studied when the atoms couple with the mode
of a high-finesse optical resonator and are driven by a laser. When the von-Laue condition is …

Abstract Ion Coulomb crystals (ICCs) are formed by laser-cooled ions in both radio-
frequency and Penning traps. In radio-frequency traps, the crystals are generally stationary …

The collective strong coupling of rubidium atoms in a magneto-optical trap (MOT) to the
Laguerre-Gaussian (LG) modes of a Fabry-Pérot cavity is investigated. Bright and dark Rb …