Results 61 to 70 of about 29,854 (299)
Optical pumping of 5s4d^{1}D_{2} strontium atoms for laser cooling and imaging
Physical Review ResearchWe present a faster repumping scheme for strontium magneto-optical traps operating on the broad 5s^{2}^{1}S_{0}−5s5p^{1}P_{1} laser cooling transition. Contrary to existing repumping schemes, we directly address lost atoms that spontaneously decayed to ...
Jens Samland +5 more
doaj +1 more source
Recent Advances Concerning the 87Sr Optical Lattice Clock at the National Time Service Center
Applied Sciences, 2018 We review recent experimental progress concerning the 87Sr optical lattice clock at the National Time Service Center in China. Hertz-level spectroscopy of the 87Sr clock transition for the optical lattice clock was performed, and closed-loop operation of
Yebing Wang +4 more
doaj +1 more source
Fast and dense magneto-optical traps for Strontium
, 2019 We improve the efficiency of sawtooth-wave-adiabatic-passage (SWAP) cooling for strontium atoms in three dimensions and combine it with standard narrow-line laser cooling. With this technique, we create strontium magneto-optical traps with $6\times 10^7$
Blatt, S. +4 more
core +1 more source
State-Dependent Optical Lattices for the Strontium Optical Qubit
, 2020 We demonstrate state-dependent optical lattices for the Sr optical qubit at the tune-out wavelength for its ground state. We tightly trap excited state atoms while suppressing the effect of the lattice on ground state atoms by more than four orders of ...
Blatt, S. +7 more
core +2 more sources
Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing
Advanced Engineering Materials, EarlyView.The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai +6 more
wiley +1 more source
Monte-Carlo simulations of superradiant lasing
New Journal of Physics, 2018 We simulate the superradiant dynamics of ensembles of atoms in the presence of collective and individual atomic decay processes. We apply the Monte-Carlo wave-function method and identify quantum jumps in a reduced Dicke state basis, which reflects the ...
Yuan Zhang +2 more
doaj +1 more source
Doppler cooling to the recoil limit using sharp atomic transitions
, 2002 In this paper, we develop an analytical approach to Doppler cooling of atoms by one- or two-photon transitions when the natural width of the excited level is so small that the process leads to a Doppler temperature comparable to the recoil temperature. A
Allegrini +20 more
core +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Possibilities of Using Ukrainian Clinoptilolite (Sokyrnytsia Deposit) in Nuclear Energy
East European Journal of PhysicsThe clinoptilolite from the Sokyrnytsia deposit belongs to the zeolite family and is known for its application as sorbents in nuclear energy. The sorption of cesium, strontium, cobalt, and europium ions by clinoptilolite has been studied.
Oleksii Yu. Lonin +3 more
doaj +1 more source
Datta-Das transistor for atomtronic circuits using artificial gauge fields
Physical Review Research, 2022 Spin-dependent electrical injection has found useful applications in storage devices, but fully operational spin-dependent semiconductor electronics remain a challenging task because of weak spin-orbit couplings and/or strong spin relaxations.
Chetan Sriram Madasu +4 more
doaj +1 more source