We have employed radio-frequency trapping to localize a single Ca-ion in a high-finesse optical cavity. By means of laser Doppler cooling, the position spread of the ion’s wavefunction along the cavity axis was reduced to 42 nm, a fraction of the resonance wavelength of ionized calcium (λ = 397 nm). By controlling the position of the ion in the optical field, continuous and completely determini...

High-precision spectra of Rydberg atoms are significance in studying the interaction between atoms, energy level structure atom, and precision measurement electromagnetic field. To enhance sensitivity, it is necessary to achieve high contrast, signal-to-noise ratio, narrow linewidth atoms. In this work, cavity-enhanced studied theoretically experimentally. Comparing with free-space contrast rat...

Self-localized states or dissipative solitons have the freedom of translation in systems with a homogeneous background. When compared to cavity solitons in coherently driven nonlinear optical systems, laser cavity solitons have the additional freedom of the optical phase. We explore the consequences of this additional Goldstone mode and analyze experimentally and numerically frequency and phase...

It has been shown that strong optical injection locking can significantly enhance the resonance frequency of semiconductor lasers. In this Letter, we describe the trade-off between the maximum resonance frequency enhancement and the quality factor (Q) of the lossless laser cavity and show that the time-bandwidth product (product of photon lifetime and maximum resonance frequency) is equal to on...

The electromagnetic field in an optical cavity can dramatically modify and even control chemical reactivity via vibrational strong coupling (VSC). Since the typical vibration frequencies are considerably higher than thermal energy, it is essential to adopt a quantum description of cavity-catalyzed adiabatic reactions. Using transition state theory (TST), we examine coherent nature reactions der...