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New optical methods of cooling and manipulating atoms and molecules

New optical methods of cooling and manipulating atoms and molecules
New optical methods of cooling and manipulating atoms and molecules
Cooling and trapping of atoms with light provides us with samples far colder and denser than possible by any other means and enables us to study and control these systems in exquisite detail[1]. We can not only learn about these systems, but can devise experiments of such precision that we test the underlying physics. It is unfortunate therefore that the most effective techniques . Doppler cooling and the Magneto Optical Trap rely on a simple energy level structure found only in a handful of elements.Finally, I will present an approach in which a particle can be cooled using the dipole, rather than the scattering, force. The dipole force is conservative, but by allowing the potential to vary in time, one can change the energy of a trapped particle. Specifically, if the potential depends on the position of the particle with some time delay, we can create a friction-like force[5, 6], and we are currently building an experiment to demonstrate this effect. This technique is not restricted to atoms with a simple structure, but requires only that the particle be polarisable; in principle, therefore, it can be extended without significant change to direct optical cooling of molecules.
Bateman, James
05b8f150-3d00-49f6-bf35-3d535b773b53
Ohadi, Hamid
08639b57-7cae-498a-afd2-dbfd5d738cd2
Murray, Richard
580ffa06-6624-49a1-9b0d-23a2a032bac0
Xuereb, André
97fca2ba-66fa-4967-a25a-8d1a2e906173
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Freegarde, Tim
01a5f53b-d406-44fb-a166-d8da9128ea7d
Bateman, James
05b8f150-3d00-49f6-bf35-3d535b773b53
Ohadi, Hamid
08639b57-7cae-498a-afd2-dbfd5d738cd2
Murray, Richard
580ffa06-6624-49a1-9b0d-23a2a032bac0
Xuereb, André
97fca2ba-66fa-4967-a25a-8d1a2e906173
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Freegarde, Tim
01a5f53b-d406-44fb-a166-d8da9128ea7d

Bateman, James, Ohadi, Hamid, Murray, Richard, Xuereb, André, Horak, Peter and Freegarde, Tim (2008) New optical methods of cooling and manipulating atoms and molecules. Rank Prize Funds Mini-Symposium on Push or Pull of Optical Momentum. 07 - 10 Jul 2008. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Cooling and trapping of atoms with light provides us with samples far colder and denser than possible by any other means and enables us to study and control these systems in exquisite detail[1]. We can not only learn about these systems, but can devise experiments of such precision that we test the underlying physics. It is unfortunate therefore that the most effective techniques . Doppler cooling and the Magneto Optical Trap rely on a simple energy level structure found only in a handful of elements.Finally, I will present an approach in which a particle can be cooled using the dipole, rather than the scattering, force. The dipole force is conservative, but by allowing the potential to vary in time, one can change the energy of a trapped particle. Specifically, if the potential depends on the position of the particle with some time delay, we can create a friction-like force[5, 6], and we are currently building an experiment to demonstrate this effect. This technique is not restricted to atoms with a simple structure, but requires only that the particle be polarisable; in principle, therefore, it can be extended without significant change to direct optical cooling of molecules.

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More information

Published date: July 2008
Venue - Dates: Rank Prize Funds Mini-Symposium on Push or Pull of Optical Momentum, 2008-07-07 - 2008-07-10

Identifiers

Local EPrints ID: 63327
URI: https://eprints.soton.ac.uk/id/eprint/63327
PURE UUID: fe1acef6-dc69-4b16-bee2-4986c4f20c64
ORCID for Peter Horak: ORCID iD orcid.org/0000-0002-8710-8764
ORCID for Tim Freegarde: ORCID iD orcid.org/0000-0002-0680-1330

Catalogue record

Date deposited: 16 Oct 2008
Last modified: 14 Mar 2019 01:45

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