Results 11 to 20 of about 1,093 (215)

Optical cycling, radiative deflection and laser cooling of barium monohydride (138Ba1H)

open access: yesNew Journal of Physics, 2020
We present the first experimental demonstration of radiation pressure force deflection and direct laser cooling for barium monohydride (BaH) molecules resulting from multiple photon scattering.
Rees L McNally   +5 more
doaj   +1 more source

A new route for laser cooling and trapping of cold molecules: Intensity-gradient cooling of MgF molecules using localized hollow beams

open access: yesNew Journal of Physics, 2020
We propose a promising scheme to prepare ultracold MgF molecules from a slowed cold molecular beam by using three-dimensional pure intensity-gradient induced Sisyphus cooling.
Kang Yan   +8 more
doaj   +1 more source

Polarizability of ultracold molecules in the rovibrational ground state of

open access: yesNew Journal of Physics, 2015
We study, both theoretically and experimentally, the dynamical polarizability $\alpha (\omega )$ of ${\mathrm{Rb}}_{2}$ molecules in the rovibrational ground state of ${a}^{3}{\Sigma }_{u}^{+}$ .
Markus Deiß   +5 more
doaj   +1 more source

Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization

open access: yesNew Journal of Physics, 2021
Magneto-optical trapping (MOT) is a key technique on the route towards ultracold molecular ensembles. However, the realization and optimization of magneto-optical traps with their wide parameter space is particularly difficult.
S Xu   +5 more
doaj   +1 more source

High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules

open access: yesNew Journal of Physics, 2017
We demonstrate cryogenic buffer-gas cooling of gas-phase methyltrioxorhenium (MTO). This molecule is closely related to chiral organometallic molecules where the parity-violating energy differences between enantiomers is measurable.
S K Tokunaga   +3 more
doaj   +1 more source

Characterizing the Zeeman slowing force for 40Ca19F molecules

open access: yesNew Journal of Physics, 2021
In this paper we investigate the feasibility of Zeeman slowing calcium monofluoride molecules originating from a cryogenic buffer gas cell. We measure the ${A}^{2}{{\Pi}}_{1/2}(v=0,J=\frac{1}{2})-{X}^{2}{{\Sigma}}_{1/2}(v=0,N=1)$ hyperfine spectrum of ...
P Kaebert   +6 more
doaj   +1 more source

Cold collisions of complex polyatomic molecules [PDF]

open access: yesThe Journal of Chemical Physics, 2012
We introduce a method for classical trajectory calculations to simulate collisions between atoms and large rigid asymmetric-top molecules. We investigate the formation of molecule-helium complexes in buffer-gas cooling experiments at a temperature of 6.5 K for molecules as large as naphthalene.
Li, Zhiying, Heller, Eric J.
openaire   +3 more sources

Prospects for a narrow line MOT in YO

open access: yesNew Journal of Physics, 2015
In addition to being suitable for laser cooling and trapping in a magneto-optical trap (MOT) using a relatively broad $(\sim 5\;{\rm MHz})$ transition, the molecule YO possesses a narrow-line transition.
Alejandra L Collopy   +4 more
doaj   +1 more source

Enhanced molecular yield from a cryogenic buffer gas beam source via excited state chemistry

open access: yesNew Journal of Physics, 2020
We use narrow-band laser excitation of Yb atoms to substantially enhance the brightness of a cold beam of YbOH, a polyatomic molecule with high sensitivity to physics beyond the standard model (BSM).
Arian Jadbabaie   +4 more
doaj   +1 more source

A new design for a traveling-wave Zeeman decelerator: II. Experiment

open access: yesNew Journal of Physics, 2021
A novel traveling-wave Zeeman decelerator based on a double-helix coil geometry capable of decelerating paramagnetic molecules with high efficiency is presented.
Tomislav Damjanović   +6 more
doaj   +1 more source

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