Cold SO2 molecules by Stark deceleration

Bucicov, Oleg; Nowak, Marcin; Jung, Sebastian; Meijer, Gerard; Tiemann, E.; Lisdat, Christian

doi:10.1140/epjd/e2008-00001-y

Cited by 18 publications

(20 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Stark deceleration of a beam of SO 2 molecules to low final velocities has been demonstrated, but the confinement and accumulation of SO radicals has so far not been reported upon. 259 8.4.2. Sympathetic Cooling.…”

Section: Ultracold Molecules In Trapsmentioning

confidence: 99%

Manipulation and Control of Molecular Beams

et al. 2012

View full text Add to dashboard Cite

CONTENTS 1. Introduction 4829 2. Historical Overview 4829 3. Stark and Zeeman Effect 4831 3.1. Introduction 4831 3.2. General Formalism 4832 3.3. Stark Effect 4833 3.3.1. Matrix Elements of H Stark 4833 3.3.2. Matrix Elements in a Basis of Symmetrized Wave Functions 4833 3.3.3. Diatomic Molecules and (A)symmetric Tops 4833 3.3.4. HCl, OH, and YbF 4834 3.3.5. ND 3 , H 2 CO, and HDO 4835 3.3.6. Candidate Molecules for Stark Deceleration 4835 3.4. Zeeman Effect 4836 3.4.1. Matrix Elements of H Zeeman in Atoms 4836 3.4.3. The Zeeman Effect of OH (X 2 Π i ) and 16 O 2 (X 3 Σ g − ) 4837 3.4.4. Candidate Molecules for Zeeman Deceleration 4838 4. Deflection and Focusing of Molecular Beams 4838 4.1. Multipole Expansion of the Electric Field in Two Dimensions 4839 4.2. Deflection Fields 4839 4.3. Focusing Low-Field Seekers 4840 4.4. Guiding Low-Field Seekers 4841 4.5. Focusing High-Field Seekers 4842 4.6. Guiding High-Field Seekers 4843 5. Deceleration of Neutral Molecules 4843 5.1.

show abstract

Section: Ultracold Molecules In Trapsmentioning

confidence: 99%

Manipulation and Control of Molecular Beams

et al. 2012

View full text Add to dashboard Cite

show abstract

“…More recently, a molecular synchrotron [83] has been constructed which confines molecules in bunches orbiting inside a split hexapole ring -a direct analogue of the charged-particle synchrotrons used for high-energy collision experiments. The Stark deceleration technique is best suited to light molecules with large first-order Stark shifts and, to date, has been demonstrated for a number of molecules in low-field seeking states: metastable CO (a 3 Π) [65,73]; ND 3 and other ammonia isotopomers [84]; OH/OD (X 2 Π, ν = 0, 1) [75,[85][86][87]; formaldehyde [88]; NH (a 1 ∆) [76,89], SO 2 [47,48]. There is also the interesting possibility of creating cold SO molecules and oxygen atoms by near-threshold photodissociation of decelerated SO 2 molecules.…”

Section: Stark Decelerationmentioning

confidence: 99%

“…There is also the interesting possibility of creating cold SO molecules and oxygen atoms by near-threshold photodissociation of decelerated SO 2 molecules. For this purpose, a 326-stage decelerator has been constructed and successfully tested in the group of Tiemann [48]. Applications of Stark decelerated molecular beams have recently been reviewed by van de Meerakker et al [90].…”

Section: Stark Decelerationmentioning

confidence: 99%

Ultracold molecules and ultracold chemistry

2009

View full text Add to dashboard Cite

“…This symmetry is also seen by setting M = 0 in Eqs. (7) and (8). Figure 5 shows what happens to CaF molecules initially in the |4, 0 state, when they are at θ = −90…”

Section: A Examplesmentioning

confidence: 99%

Nonadiabatic transitions in a Stark decelerator

et al. 2010

View full text Add to dashboard Cite

In a Stark decelerator, polar molecules are slowed down and focussed by an inhomogeneous electric field which switches between two configurations. For the decelerator to work, it is essential that the molecules follow the changing electric field adiabatically. When the decelerator switches from one configuration to the other, the electric field changes in magnitude and direction, and this can cause molecules to change state. In places where the field is weak, the rotation of the electric field vector during the switch may be too rapid for the molecules to maintain their orientation relative to the field. Molecules that are at these places when the field switches may be lost from the decelerator as they are transferred into states that are not focussed. We calculate the probability of nonadiabatic transitions as a function of position in the periodic decelerator structure and find that for the decelerated group of molecules the loss is typically small, while for the un-decelerated group of molecules the loss can be very high. This loss can be eliminated using a bias field to ensure that the electric field magnitude is always large enough. We demonstrate our findings by comparing the results of experiments and simulations for the Stark deceleration of LiH and CaF molecules. We present a simple method for calculating the transition probabilities which can easily be applied to other molecules of interest.

show abstract

Cold SO2 molecules by Stark deceleration

Cited by 18 publications

References 33 publications

Manipulation and Control of Molecular Beams

Manipulation and Control of Molecular Beams

Ultracold molecules and ultracold chemistry

Nonadiabatic transitions in a Stark decelerator

Contact Info

Product

Resources

About