Results 31 to 40 of about 312,210 (236)
Zeitschrift für Naturforschung A, 1975 Abstract Wavelength spectrum, threshold intensity, photobleaching and long pulse emission in cooled dye matrices (rhodamin B, rhodamin 6 G, cresylviolet) as a function of temperature (+ 25 °C to - 140 °C) was investigated. Absorption spectra were also obtained.
Ch. Heinsohn, J. Weber
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Sisyphus Optical Lattice Decelerator [PDF]
, 2018 We experimentally demonstrate a variation on a Sisyphus cooling technique that was proposed for cooling antihydrogen. In our implementation, atoms are selectively excited to an electronic state whose energy is spatially modulated by an optical lattice ...
Bennetts, Shayne +4 more
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Collisional effects on the collective laser cooling of trapped bosonic gases [PDF]
, 1999 We analyse the effects of atom-atom collisions on collective laser cooling scheme. We derive a quantum Master equation which describes the laser cooling in presence of atom-atom collisions in the weak-condensation regime.
Lewenstein, Maciej, Santos, Luis
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The Effects of Laser Surface Modification on the Microstructure of 1.4550 Stainless Steel
MATEC Web of Conferences, 2018 In this study a stainless austenitic steel 1.4550 was laser heat treated with diode laser. The influence a gouache coating on remelted steel substrate was carry out. The cooling system during laser melted was analysis as well.
Przestacki Damian +3 more
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Robust polarization gradient cooling of trapped ions
New Journal of Physics, 2022 We implement three-dimensional polarization gradient cooling (PGC) of trapped ions. Counter-propagating laser beams near 393 nm impinge in lin ⊥ lin configuration, at a frequency below the S _1/2 to P _3/2 resonance in ^40 Ca ^+ .
Wenbing Li +5 more
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Laser cooling of new atomic and molecular species with ultrafast pulses
, 2003 We propose a new laser cooling method for atomic species whose level structure makes traditional laser cooling difficult. For instance, laser cooling of hydrogen requires single-frequency vacuum-ultraviolet light, while multielectron atoms need single ...
D. Kielpinski +6 more
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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
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Laser Cooling and Trapping of Rare-Earth-Doped Particles
Applied Sciences, 2022 This review focuses on optical refrigeration with the anti-Stokes fluorescence of rare-earth (RE)-doped low-phonon micro- and nanocrystals. Contrary to bulk samples, where the thermal energy is contained in internal vibrational modes (phonons), the ...
Galina Nemova
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Laser Cooling of Nuclear Magnons
Physical Review Letters, 2023 13 pages, 3 ...
Haowei Xu +7 more
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Cavity cooling of free silicon nanoparticles in high-vacuum [PDF]
, 2013 Laser cooling has given a boost to atomic physics throughout the last thirty years since it allows one to prepare atoms in motional states which can only be described by quantum mechanics.
Arndt, Markus +4 more
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