Published February 17, 1995
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Laser confinement of cold atoms in a gravitational cavity and in an optical pumping trap
Description
The aim of this thesis is to study two new radiation traps for neutral atoms. The first trap is a vertical cavity for the confinement of slow atoms. We used a curved atomic mirror formed by an evanescent light wave extending from a glass surface into the vacuum, the second mirror being simply gravity. We demonstrated paraxial confinement of slow atoms in such a cavity Experimental techniques for matter-wave optics and interferometry can now be envisaged. The second trap is a new radiation pressure trap which relies on optical pumping and does not require any magnetic field. It employs six circularly polarized divergent beams and works on the red of a Jg → Je = Jg + 1 atomic transition with Jg > 0. (author)
Abstract (French)
L'objet de cette these est l'etude de deux nouveaux pieges radiatifs a atomes neutres. Le premier est une cavite atomique verticale formee par un miroir electromagnetique convexe, la gravite jouant le role de second miroir. Ce miroir atomique utilise une onde evanescente intense a la surface incurvee d'un dielectrique. Nous avons montre que le confinement paraxial des atomes est possible dans un tel piege, ouvrant ainsi la voie vers des applications fondamentales d'optique et d'interferometrie atomique. Le second piege est un nouveau piege a pression de radiation base sur le pompage optique qui fonctionne en champ magnetique nul: le TROOP. Il est constitue de six faisceaux divergents de polarisation circulaire et fonctionne sur le rouge d'une transition Jg → Je = Jg + 1 avec Jg > 0. (auteur)Files
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Additional details
Additional titles
- Original title (French)
- Confinement par laser d'atomes froids dans une cavite gravitationnelle et dans un piege a pompage optique
Publishing Information
- Imprint Pagination
- 256 p.
- Report number
- FRNC-TH--13757
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 54002466
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- CESIUM; DIELECTRIC MATERIALS; ELECTRIC FIELDS; FABRY-PEROT INTERFEROMETER; HELICITY; LASER CAVITIES; OPTICAL PUMPING; POLARIZATION; SOLID STATE LASERS; TRAJECTORIES; TRAPPING
- Descriptors DEC
- ALKALI METALS; ELEMENTS; INTERFEROMETERS; LASERS; MATERIALS; MEASURING INSTRUMENTS; METALS; PARTICLE PROPERTIES; PUMPING
Optional Information
- Notes
- 169 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses