Coherent backscattering of light from a cold atomic cloud

Autor:	J.-C. Bernard, F. De Tomasi, Cord A. Müller, Robin Kaiser, G. Labeyrie, Christian Miniatura
Přispěvatelé:	G., Labeyrie, DE TOMASI, Ferdinando, J. C., Bernard, C., Muller, C., Miniatura, R., Kaiser
Rok vydání:	2000
Předmět:	Physics chemistry Laser probe General Physics and Astronomy chemistry.chemical_element Physics::Atomic Physics Coherent backscattering Ccd detector Atomic physics Polarization (waves) Helicity Rubidium
Zdroj:	Le Journal de Physique IV. 10:Pr8-63
ISSN:	1155-4339
DOI:	10.1051/jp4:2000808
Popis:	We report the first observation of coherent backscattering of light from a sample of laser-cooled atoms. Rubidium 85 atoms are captured from a room-temperature vapor in a magneto-optical trap, and illuminated with a laser probe. The angular intensity distribution of the backscattered light is recorded on a cooled CCD detector. We observe a small enhancement factor in all polarization channels, including the helicity preserving channel where the enhancement is only 1.08. This surprising observation is attributed to the existence of contrast reduction processes involving the atom's internal structure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f20a241f43d1c10ce715574aed81ee8 https://doi.org/10.1051/jp4:2000808 Zobrazit plný text záznamu