Results 11 to 20 of about 429,185 (305)

Imaging Cold Molecules on a Chip [PDF]

open access: yesPhysical Review Letters, 2013
We present the integrated imaging of cold molecules in a microchip environment. The on-chip de- tection is based on REMPI, which is quantum-state-selective and generally applicable. We demon- strate and characterize time-resolved spatial imaging and subsequently use it to analyze the effect of a phase-space manipulation sequence aimed at compressing ...
Marx, S.   +7 more
openaire   +5 more sources

Cold SO2 molecules by Stark deceleration [PDF]

open access: yesThe European Physical Journal D, 2008
We produce SO_2 molecules with a centre of mass velocity near zero using a Stark decelerator. Since the initial kinetic energy of the supersonic SO_2 molecular beam is high, and the removed kinetic energy per stage is small, 326 deceleration stages are necessary to bring SO_2 to a complete standstill, significantly more than in other experiments.
Bucicov, O.   +6 more
openaire   +2 more sources

Spectroscopy and Chemical Dynamics

open access: yesCHIMIA, 2010
Chemical physics and molecular spectroscopy are topics with a traditionally strong emphasis in the department. Current research focuses on the spectroscopic characterization of transient molecules present in interstellar space and the ...
John P. Maier, Stefan Willitsch
doaj   +1 more source

Ultra-Cold Molecules

open access: yesPhysica Scripta, 2004
In this paper we overview recent results on the formation of translationally cold molecules. While there are some methods relying on direct cooling of molecules, we shall concentrate on the photoassociation technique that starts from laser-cooled atoms.
Andrea Fioretti   +4 more
openaire   +5 more sources

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

Low-energy collisions between carbon atoms and oxygen molecules in a magnetic trap

open access: yesNew Journal of Physics, 2020
Trapping of atoms and molecules in electrostatic, magnetic and optical traps has enabled studying atomic and molecular interactions on a timescale of many seconds, allowing observations of ultra-cold collisions and reactions.
Michael Karpov   +4 more
doaj   +1 more source

A new design for a traveling-wave Zeeman decelerator: I. Theory

open access: yesNew Journal of Physics, 2021
The concept of a novel traveling wave Zeeman deccelerator based on a double-helix wire geometry capable of decelerating paramagnetic species with high efficiency is presented.
Tomislav Damjanović   +6 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

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