Efficient sub-Doppler laser cooling of an Indium atomic beam

Efficient sub-Doppler laser cooling of an Indium atomic beam

We have realized efficient transverse cooling of an Indium atomic beam by combining optical pumping with a closed cycle UV laser cooling transition at 325.6 nm. The transverse velocity of the atomic beam is reduced to 13.5+/-3.8 cm/s, well below the Doppler cooling limit. The fraction of laser-coole...

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Veröffentlicht in:Optics express 2009-11, Vol.17 (23), p.21216
Hauptverfasser: Kim, Jae-Ihn, Haubrich, Dietmar, Meschede, Dieter
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Haubrich, Dietmar
Meschede, Dieter
description We have realized efficient transverse cooling of an Indium atomic beam by combining optical pumping with a closed cycle UV laser cooling transition at 325.6 nm. The transverse velocity of the atomic beam is reduced to 13.5+/-3.8 cm/s, well below the Doppler cooling limit. The fraction of laser-cooled In atoms is enhanced to 12+/-3 % by optical pumping in the present experiment. It can be scaled up to approach 100% efficiency in cooling, providing high brightness atomic beams for further applications. Our results establish In on the map of elements suitable for applications involving laser cooling.
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title Efficient sub-Doppler laser cooling of an Indium atomic beam
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