Results 31 to 40 of about 526 (247)
Be optical lattice clocks with the fractional Stark shift up to the level of 10−19
New Journal of Physics, 2023 The energy levels and electric dipole ( $E1$ ) matrix elements of the ground state and low-lying excited states of Be atoms are calculated using the relativistic configuration interaction plus core polarization (RCICP) method. The static and dynamic $E1$
Lei Wu +4 more
doaj +1 more source
Deep Laser Cooling of Thulium Atoms to Sub-µK Temperatures in Magneto-Optical Trap
Atoms, 2023 Deep laser cooling of atoms, ions, and molecules facilitates the study of fundamental physics as well as applied research. In this work, we report on the narrow-line laser cooling of thulium atoms at the wavelength of 506.2nm with the natural linewidth ...
Daniil Provorchenko +8 more
doaj +1 more source
IEEE Photonics Journal, 2021 We demonstrate a high-precision, high robustness frequency offset locking method,which made the frequency offset between mode-locked laser and continuous-wave laser below less than 3 Hz.The coarse frequency lock control is realized by the feedback ...
Xing Chen +4 more
doaj +1 more source
Nuclear spin effects in optical lattice clocks [PDF]
Physical Review A, 2007 13 pages, 12 figures, submitted to ...
Boyd, Martin M. +6 more
openaire +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To (1) validate GAD65‐ELISA detection and quantification for type 1 diabetes mellitus and autoimmune neurological diagnoses, (2) correlate ELISA results (reference range < 5 IU/mL) with established radioimmunoprecipitation assay (RIA; ≤ 0.02 nmol/L), and (3) define ELISA clinical utility and pitfalls.
Andrew McKeon +11 more
wiley +1 more source
A transportable optical lattice clock
Journal of Physics: Conference Series, 2016 We present the experimental setup and first results of PTB's transportable 87Sr clock. It consists of a physics package, several compact laser breadboards, and a transportable high finesse cavity for the clock laser. A comparison of the transportable system with our stationary optical lattice clock yields an instability of 2.2 x 10-15 √s/τ for the ...
Stefan Vogt +6 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Colloquium: Physics of optical lattice clocks [PDF]
Reviews of Modern Physics, 2011 18 pages, 15 ...
Derevianko, Andrei, Katori, Hidetoshi
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
New Journal of Physics, 2017 We present and implement a non-destructive detection scheme for the transition probability readout of an optical lattice clock. The scheme relies on a differential heterodyne measurement of the dispersive properties of lattice-trapped atoms enhanced by a
G Vallet +5 more
doaj +1 more source