Results 61 to 70 of about 4,074 (195)
Saturation of Cs2 Photoassociation in an Optical Dipole Trap
, 2004 We present studies of strong coupling in single-photon photoassociation of cesium dimers using an optical dipole trap. A thermodynamic model of the trap depletion dynamics is employed to extract absolute rate coefficents.
J. Lange +9 more
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Bose-Stimulated Raman Adiabatic Passage in Photoassociation [PDF]
Physical Review Letters, 2000 We analyze coherent two-color photoassociation of a Bose-Einstein condensate, focusing on stimulated Raman adiabatic passage (STIRAP) in free-bound-bound transitions from atoms to molecules. This problem is of particular interest since STIRAP is predicted to be necessarily absent in the nondegenerate case [Javanainen and Mackie, Phys. Rev.
Mackie, Matt +2 more
openaire +3 more sources
Photoassociation spectra and the validity of the dipole approximation for weakly bound dimers
, 2010 Photoassociation (PA) of ultracold metastable helium to the 2s2p manifold is theoretically investigated using a non-perturbative close-coupled treatment in which the laser coupling is evaluated without assuming the dipole approximation.
D. M. Brink +3 more
core +1 more source
Quantum defect theory description of weakly bound levels and Feshbach resonances in LiRb
New Journal of Physics, 2015 The multichannel quantum defect theory (MQDT) in combination with the frame transformation (FT) approach is applied to model the Fano–Feshbach resonances measured for ^7 Li ^87 Rb and ^6 Li ^87 Rb Marzok et al (2009 Phys. Rev. A http://dx.doi.org/10.1103/
Jesús Pérez-Ríos +3 more
doaj +1 more source
Sodium Bose-Einstein Condensates in an Optical Lattice
, 2005 The phase transition from a superfluid to a Mott insulator has been observed in a $^{23}$Na Bose-Einstein condensate. A dye laser detuned $\approx 5$nm red of the Na $3^2$S$ \to 3^2$P$_{1/2}$ transition was used to form the three dimensional optical ...
Abo-Shaeer, J. R. +8 more
core +1 more source
Selective control of photoassociation of Yb2: by theoretical study
, 2020 The selective control of photoassociation of Yb2 molecule is investigated in theory. Based on ab initio to rationalize Franck-Condon filtering, the optimal target states of photoassociation have been obtained.
Junxia Cheng +4 more
semanticscholar +1 more source
Role of Bose enhancement in photoassociation [PDF]
, 2000 We discuss the role of Bose enhancement of the dipole matrix element in photoassociation, using stimulated Raman adiabatic passage as an example. In a nondegenerate gas the time scale for coherent optical transients tends to infinity in the thermodynamic
Javanainen J. +2 more
core +2 more sources
Applied Sciences, 2019 We report the preparation of a 780.2 nm and 852.3 nm laser device based on single-pass periodically poled magnesium-oxide-doped lithium niobate (PPMgO:LN) bulk crystals and diode-laser-seeded fiber amplifiers.
Kong Zhang, Jun He, Junmin Wang
doaj +1 more source
New Journal of Physics, 2020 Experiments with cold ion–atom mixtures have recently opened the way for the production and application of ultracold molecular ions. Here, in a comparative study, we theoretically investigate ground and several excited electronic states and prospects for
Wissem Zrafi +4 more
doaj +1 more source
Many-Body Rate Limit on Photoassociation of a Bose-Einstein Condensate
, 2010 We briefly report on zero-temperature photoassociation of a Bose-Einstein condensate, focusing on the many-body rate limit for atom-molecule conversion.
Matt Mackie, Pierre Phou, S. M. Barnett
core +1 more source