Continuous Lyman-alpha generation by four-wave mixing in mercury for laser cooling of antihydrogenThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at École de Physique, les Houches, France, 30 May – 4 June, 2010.

Author:

Kolbe D.1,Beczkowiak A.1,Diehl T.1,Koglbauer A.1,Müllers A.1,Scheid M.1,Stappel M.1,Steinborn R.1,Walz J.1

Affiliation:

1. Institut für Physik, Johannes Gutenberg-Universität Mainz and Helmholtz Institute Mainz, D-55099 Mainz, Germany.

Abstract

Cooling antihydrogen atoms is important for future experiments both to test the fundamental CPT symmetry by high resolution laser spectroscopy and also to measure the gravitational acceleration of antimatter. Laser cooling of antihydrogen can be done on the strong 1S–2P transition at the wavelength of Lyman-alpha (121.6 nm). A continuous wave laser at the Lyman-alpha wavelength based on solid-state fundamental lasers is described. By using a two-photon and a near one-photon resonance a scan across the whole phase matching curve of the four-wave mixing process is possible. Furthermore the influence of the beam profile of one fundamental beam on the four-wave mixing process is studied.

Publisher

Canadian Science Publishing

Subject

General Physics and Astronomy

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