 |
 |
 |
|
|
|
| HAL : jpa-00251025, version 1 |
| DOI : 10.1051/jp4:1991782 |
| Fiche détaillée |  Récupérer au format |
|
|
| International Conference Laser M2P 2, Grenoble : France (1991) |
|
|
|
|
| A SINGLE-MODE, DIODE-PUMPED LMA LASER TO PROBE THE SPIN ORIENTATION OF ENSEMBLES OF 3He AND 4He |
|
|
| L. Schearer1S. Essabaa1M. Leduc2 |
|
|
| (1991) |
|
|
|
| A diode-pumped Nd:Lanthanum Magnesium Hexaluminate laser was constructed which provides up to 15 mW of single-mode, tunable CW emission at 1083 nm. By appropriately polarizing the narrow-band laser emission (< 10 MHz), the laser can be used to determine the populations of the magnetic substates of the He ( 23S1) atoms. The laser is tuned to one of the absorption peaks of the helium metastable atom by tilting a thin (1 mm) solid, coated etalon placed inside the laser cavity and the absorption is measured. The relative absorption is used to determine the ensemble polarization ; the absolute absorption yields the metastable density. |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | IPNO - Institut de Physique Nucléaire d'Orsay |
|
|
| 2 : | LSH-ENS - Laboratoire de Spectroscopie Hertzienne de l'ENS |
|
|
|
|
|
|
|
|
|
| Domaine | : | Physique/Articles anciens Physique/Physique/Instrumentations et Détecteurs |
|
|
| Liste des fichiers attachés à ce document : | |||||
|
|||||
|
|
|
| jpa-00251025, version 1 | |
| http://hal.archives-ouvertes.fr/jpa-00251025 | |
| oai:hal.archives-ouvertes.fr:jpa-00251025 | |
| Contributeur : Archives Journal de Physique | |
| Soumis le : Mardi 1 Janvier 1991, 08:00:00 | |
| Dernière modification le : Mercredi 5 Mars 2008, 11:44:27 | |
