LiSrAlF 6 crystals doped with Th 229 are used in a laser-based search for the nuclear
isomeric transition. Two spectroscopic features near the nuclear transition energy are …

High-resolution X-ray spectroscopy in the sub-nanosecond to femtosecond time range
requires ultrashort X-ray pulses and a spectral X-ray flux considerably larger than that …

Optical quantum memories are key elements in modern quantum technologies to reliably
store and retrieve quantum information. At present, they are conceptually limited to the …

Magnetic-shielding technologies play a crucial role in the field of ultra-sensitive physical
measurement, medical imaging, quantum sensing, etc. With the increasing demand for the …

A cavity-based X-ray free-electron laser (CBXFEL) is a possible future direction in the
development of fully coherent X-ray sources. CBXFELs consist of a low-emittance electron …

The interaction between light and atomic nuclei is typically weak and confined within the
linear and perturbative regime, which limits the achievable nuclear excitation probability and …

The success of x-ray free-electron lasers (XFELs) in recent years has greatly advanced
many scientific fields. However, most of these XFELs suffer from a low longitudinal …

Highly charged ions (HCIs) are less sensitive to external perturbations and are therefore
attractive for the development of ultrastable clocks. However, only a few HCI candidates are …

Recently, the 1.4 feV ultranarrow nuclear transition at 12.4 keV energy in Sc 45 was
resonantly excited for the first time using radiation from the self-seeded EuXFEL laser [Y …

We propose to generate continuous-wave vacuum ultraviolet (VUV) laser light at 148.4 nm
using four-wave mixing in cadmium vapor for precision spectroscopy of the Th-229 isomer …