Highly collimated source of cold Rubidium atoms from a two dimensional magneto-optical trap

Autor:	Carrat, Vincent, Cabrera-Guitierez, Citlali, Jacquey, Marion, Tabosa, José W., de Lesegno, Bruno Viaris, Pruvost, Laurence
Rok vydání:	2013
Předmět:	Physics - Atomic Physics Physics - Optics Quantum Physics
Druh dokumentu:	Working Paper
Popis:	Using a blue detuned laser shaped in a Laguerre-Gaussian donut mode we highly collimate the output of a two dimensional magneto-optical trap. The resulting atomic beam has a 1 mm diameter, its divergence is reduced from 40 down to 3 mrad and the atomic density is increased by a factor of 200. The collimation effect has been studied versus the order of the Laguerre-Gaussian mode (up to 10) and the laser atom frequency detuning (2 to 120 GHz). The 2D-colli-MOT study allows us to determine the best conditions which minimize the atom heating due to residual light absorption and optimize the collimation effect. The 2D-colli MOT could provide a new tool to fill a 3D-MOT using lasers with millimeter range diameters and thus sparing the laser power. Comment: This paper has been withdrawn by the author due to required modifications
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1304.7243 Zobrazit plný text záznamu View this record from Arxiv