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Optical pumping in dense atomic media: Limitations due to reabsorption of spontaneously emitted photons

  • Abstract: Resonant optical pumping in dense atomic media is discussed, where the absorption length is less than the smallest characteristic dimension of the sample. It is shown that reabsorption and multiple scattering of spontaneous photons (radiation trapping) can substantially slow down the rate of optical pumping. A very slow relaxation out of the target state of the pump process is then sufficient to make optical pumping impossible. As model systems an inhomogeneously and a radiatively broadened 3-level system resonantly driven with a strong broad-band pump field are considered.

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Metadaten
Author:Michael Fleischhauer
URN:urn:nbn:de:hbz:386-kluedo-12094
Document Type:Preprint
Language of publication:English
Year of Completion:1998
Year of first Publication:1998
Publishing Institution:Technische Universität Kaiserslautern
Date of the Publication (Server):2001/07/02
Faculties / Organisational entities:Kaiserslautern - Fachbereich Physik
DDC-Cassification:5 Naturwissenschaften und Mathematik / 530 Physik
Licence (German):Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011