Results 161 to 170 of about 4,074 (195)

Photoassociation of heteronuclear lithium

Applied Physics B, 2001
Photoassociation of ultracold heteronuclear 6Li7Li molecules is observed inside a combined magneto-optical trap for 6Li and 7Li. The trapped atomic cloud is illuminated by a tunable single-mode laser and the number of trapped 7Li atoms is monitored by absorption spectroscopy. Characteristic hyperfine resolved spectra have been recorded for singlet spin
U. Schlöder, C. Silber, C. Zimmermann
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Formation of ultracold ground-state CsYb molecules via Feshbach-optimized photoassociation

Journal of Physics B: Atomic, Molecular and Optical Physics, 2020
We investigate theoretically the formation of ultracold ground-state CsYb molecules on the lowest vibrational level via the Feshbach-optimized photoassociation process. Three s-wave Feshbach resonances of CsYb are found.
Zhigang Sun, Y. Hai, B. Lyu, Gaoren Wang, S. Cong   +4 more
semanticscholar   +1 more source

Experimental realization of multiple frequency photoassociation in an optical dipole trap.

Journal of Chemical Physics
The generation of cold molecules is an important topic in the field of cold atoms and molecules and has received relevant advanced research attention in ultracold chemistry, quantum computation, and quantum metrology.
Li Li, Jian Wang, Yijia Liu, Xiao-Long Zhou, Dongfei Huang, Ze-Min Shen, Sijian He, Zhao-Di Liu, Chuan-Feng Li, Guang-Can Guo   +9 more
semanticscholar   +1 more source

Photoassociation spectroscopy of weakly bound Rb287 molecules near the 5P1/2+5S1/2 threshold by optical Bragg scattering in Bose-Einstein condensates

Physical Review A, 2020
We report the high-resolution photoassociation (PA) spectroscopy of a Rb Bose-Einstein condensate (BEC) to excited molecular states near the dissociation limit of 5P1/2 + 5S1/2 by optical Bragg scattering.
K. Nawaz, Liangchao Chen, Chengdong Mi, Zengming Meng, Lianghui Huang, Pengjun Wang, Jing Zhang   +6 more
semanticscholar   +1 more source

Enhancement of the photoassociation of ultracold atoms via a non-resonant magnetic field

, 2020
We report an effective method for enhancing the photoassociation of ultracold atoms using a non-resonant magnetic field, which enables the manipulation of the coupling between the wavefunctions of the colliding atomic pairs and the excited molecules.
Jizhou Wu, Yuqing Li, Wenliang Liu, Peng Li, Xiaofeng Wang, Peng Chen, Jie Ma, Liantuan Xiao, Suotang Jia   +8 more
semanticscholar   +2 more sources

Photoassociative Spectroscopy of Laser-Cooled Atoms

Annual Review of Physical Chemistry, 1995
Advances in laser cooling of neutral atoms have made possible a new form of high-resolution laser spectroscopy: photoassociation of ultracold atoms. Colliding neutral atoms, confined in a laser trap, are photoassociated to bound excited states of the dimer molecule by absorbing a photon from a tunable laser.
P D, Lett, P S, Julienne, W D, Phillips
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Photoassociation of metastable helium

Europhysics Letters (EPL), 2005
A theoretical study is performed for the photoassociation of metastable helium. Combining short-range, high-level, ab initio calculations for 5Σg/u+ and 5Πg/u symmetries and long-range behaviour, better described in Hund's case (c), potential-energy curves for attractive, 5Σu+ and 5Πg, as well as repulsive, 5Πu and 5Σg+, states of quintet metastable ...
Dickinson AS, Gadea FX, Leininger T
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Photoassociation spectrum of ultracold Rb atoms

Physical Review Letters, 1993
We study the photoassociative collisional loss of laser-cooled Rb atoms from a far-off resonance optical dipole force atom trap. We obtain a well-resolved photoassociation spectrum from 50 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ to 980 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ below the first excited dissociation limit of the ${\mathrm{Rb}}_{2 ...
, Miller, , Cline, , Heinzen
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Reflection approximation in photoassociation spectroscopy

Physical Review A, 2000
We construct an analytical wave function in the phase-amplitude formalism to describe collisions between two neutral atoms. This wave function is valid from intermediate to asymptotic internuclear distance over a large energy range near zero energy, and is especially suitable for cold and ultracold collisions.
C. Boisseau, E. Audouard, J. Vigué, P. S. Julienne   +3 more
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Photoassociation, cold molecules and prospects

Comptes Rendus de l'Académie des Sciences - Series IV - Physics, 2001
Abstract Photoassociation of cold atoms opens a promising way for the obtention of dense samples of cold molecules. In a photoassociation process, two atoms absorb resonantly one photon to form a cold molecule in a ro-vibrational level of an electronically excited state.
B. Laburthe Tolra, C. Drag, S. Boussen, B. T'Jampens, C. Dion, S. Guibal, D. Comparat, O. Dulieu, A. Crubellier, F. Masnou-Seeuws, P. Pillet   +10 more
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