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  Giant Kerr effect in closed degenerate two-level transitions

Spani Molella, L., Rinkleff, R.-H., Kühn, G., & Danzmann, K. (2008). Giant Kerr effect in closed degenerate two-level transitions. Applied Physics B, 90(2), 273-277. doi:10.1007/s00340-007-2824-2.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-624A-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-624C-6
Genre: Journal Article

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ApplPhysB90_273.pdf (Publisher version), 475KB
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Spani Molella, L.1, Author
Rinkleff, Rolf-Hermann1, Author              
Kühn, Gerrit1, Author              
Danzmann, Karsten1, Author              
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_24010              

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 Abstract: Extremely large optical Kerr non-linearities (n2) and (n4) were measured in two closed degenerate two-level transitions in the caesium D2 line when a probe and a coupling laser simultaneously probed and coupled the hyperfine structure in an atomic beam. The magnitude of the measured non-linearities in both transitions were found to be a function of the coupling laser intensity and of the probe detuning from the two-photon resonance. In a figure of merit, the ratio between the non-unitarian part of the refractive index and the absorption coefficient measured in conditions of electromagnetically induced transparency showed a maximum value for a probe detuning of 160 kHz from the two-photon resonance and resulted in being 105 times larger than in the absence of the coupling laser field.

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Language(s): eng - English
 Dates: 2008
 Publication Status: Published in print
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 Identifiers: DOI: 10.1007/s00340-007-2824-2
eDoc: 320158
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Title: Applied Physics B
Source Genre: Journal
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Pages: - Volume / Issue: 90 (2) Sequence Number: - Start / End Page: 273 - 277 Identifier: ISSN: 1432-0649