4 papers
Record nonlinear conversion efficiency in the production of high spectral purity vacuum ultraviolet laser at 148 nm
Sergey Vasilyev, Tian Ooi, Igor Moskalev +14
Coherent vacuum-ultraviolet (VUV) lasers are indispensable for precision measurement, quantum optics, and materials science. Recent high-resolution spectroscopy of the Th-229 nucle…
First investigation of Zr samples enriched by the gas-centrifuge method for the use in rare-decay studies
D. Arefev, A. S. Barabash, M. De Jesus +21
For the first time, the isotope Zr has been produced by the gas-centrifuge method (enrichment is 88.28% and full mass of Zr is 179.816 g). The level of radionuclide i…
Long-wave infrared Fourier transform spectroscopy with enhanced and scalable sensitivity
Sergey Vasilyev, Roderik Krebbers, Dmitrii Konnov +7
We report a broadband long-wave infrared Fourier transform spectrometer with sensitivity exceeding that of previously reported direct-detection implementations. The system combines…
Frequency comb UV spectroscopy with one million resolved comb lines
Andrey Muraviev, Dmitrii Konnov, Sergey Vasilyev +1
We perform dual-comb spectroscopy in two UV bands: 325-342 nm and 372-410 nm, corresponding to the 7th and 6th harmonics of a dual-comb 2.35-μm laser source, and simultaneously res…