Results 1 to 10 of about 2,890,811 (111)
Laser cooling of molecules [PDF]
Contemporary Physics, 2018 Recently, laser cooling methods have been extended from atoms to molecules. The complex rotational and vibrational energy level structure of molecules makes laser cooling difficult, but these difficulties have been overcome and molecules have now been ...
exaly +2 more sources
Determination of CaOH and CaOCH3 vibrational branching ratios for direct laser cooling and trapping [PDF]
New Journal of Physics, 2019 Alkaline earth monoalkoxide free radicals (MORs) have molecular properties conducive to direct laser cooling to sub-millikelvin temperatures. Using dispersed laser induced fluorescence measurements from a pulsed supersonic molecular beam source we ...
Ivan Kozyryev +4 more
doaj +2 more sources
Photodetachment and Doppler laser cooling of anionic molecules
New Journal of Physics, 2018 We propose to extend laser-cooling techniques, so far only achieved for neutral molecules, to molecular anions. A detailed computational study is performed for ${{\rm{C}}}_{2}^{-}$ molecules stored in Penning traps using GPU based Monte Carlo simulations.
Sebastian Gerber +3 more
doaj +2 more sources
Journal of Materials Research and Technology, 2022 The relationship between solidification structure and cooling rate is critical for optimizing processing parameters to achieve desired mechanical property of additive manufactured parts.
Hui Xiao +6 more
doaj +3 more sources
Narrow-line laser cooling by adiabatic transfer [PDF]
New Journal of Physics, 2018 We propose and demonstrate a novel laser cooling mechanism applicable to particles with narrow-linewidth optical transitions. By sweeping the frequency of counter-propagating laser beams in a sawtooth manner, we cause adiabatic transfer back and forth ...
Matthew A Norcia +4 more
doaj +2 more sources
Direct laser cooling of calcium monohydride molecules [PDF]
New Journal of Physics, 2022 We demonstrate optical cycling and laser cooling of a cryogenic buffer-gas beam of calcium monohydride (CaH) molecules. We measure vibrational branching ratios for laser cooling transitions for both excited electronic states A and B.
S. Vazquez-Carson +4 more
semanticscholar +1 more source
Laser cooling for quantum gases [PDF]
Nature Physics, 2021 Laser cooling exploits the physics of light scattering to cool atomic and molecular gases to close to absolute zero. It is the crucial initial step for essentially all atomic gas experiments in which Bose–Einstein condensation and, more generally ...
Florian Schreck, Klaasjan van Druten
semanticscholar +1 more source
A laser cooling scheme for precision measurements using fermionic barium monofluoride (137Ba19F) molecules [PDF]
, 2021 We theoretically investigate the laser cooling of fermionic barium monofluoride (137BaF) molecules, which are promising candidates for precision studies of weak parity violation and nuclear anapole moments.
F. Kogel +3 more
semanticscholar +1 more source
Direct laser cooling of a symmetric top molecule [PDF]
Science, 2020 The symmetric top molecule CaOCH3 is laser-cooled to submillikelvin temperatures. Laser cooling of symmetric top molecule Experimental progress over the past few decades has led to the mastery of ultracold atomic gases. A major thrust of current research
D. Mitra +8 more
semanticscholar +1 more source
Laser cooling of antihydrogen atoms
Nature, 2021 The photon—the quantum excitation of the electromagnetic field—is massless but carries momentum. A photon can therefore exert a force on an object upon collision1.
C. J. Baker +57 more
semanticscholar +1 more source