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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2005, Volume 82, Issue 1, Pages 18–22
(Mi jetpl1498)
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This article is cited in 3 scientific papers (total in 3 papers)
ATOMS, SPECTRA, RADIATIONS
2D laser collimation of a cold Cs beam induced by a transverse $B$-field
M. D. Plimmera, N. Castagnaa, G. Di Domenicoa, P. Thomanna, A. V. Taichenachevbc, V. I. Yudinbc a Observatoire cantonal, 2000 Neuchâtel, Switzerlangd
b Novosibirsk State University, 630090 Novosibirsk,
Russia
c Institute of Laser Physics SB RAS, 630090 Novosibirsk, Russia
Abstract:
We describe transverse collimation of a continuous cold cesium beam (longitudinal temperature 75 $\mu$K) induced by a two-dimensional, blue-detuned near-resonant optical lattice. The mechanism described for a lin-$\parallel$-lin configuration is made possible by the application of a transverse magnetic field $B_\perp$. The phenomenon described differs from grey molasses for which any small magnetic field degrades cooling, as well as from magnetically induced laser cooling in red-detuned optical molasses where there are no dark states. The lowest transverse temperature is experimentally found to vary as $B_\perp^2.$ The collimated flux density shows a dip as a function of $B_\perp$, the width of which is proportional to the cube root of the laser intensity, general features predicted by our semi-classical model. This technique provides a sensitive tool for cancelling transverse magnetic fields in situ at the milligauss level.
Received: 26.04.2005
Citation:
M. D. Plimmer, N. Castagna, G. Di Domenico, P. Thomann, A. V. Taichenachev, V. I. Yudin, “2D laser collimation of a cold Cs beam induced by a transverse $B$-field”, Pis'ma v Zh. Èksper. Teoret. Fiz., 82:1 (2005), 18–22; JETP Letters, 82:1 (2005), 17–21
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https://www.mathnet.ru/eng/jetpl1498 https://www.mathnet.ru/eng/jetpl/v82/i1/p18
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Abstract page: | 211 | Full-text PDF : | 60 | References: | 47 |
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