2 research outputs found
Continuous Lyman-alpha generation by four-wave mixing in mercury for laser-cooling of antihydrogen
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 (121.6nm). 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 phasematching 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.Comment: 4 pages, 4 figure
A reliable cw Lyman- laser source for future cooling of antihydrogen
We demonstrate a reliable continuous-wave (cw) laser source at the
1\,--2\, transition in (anti)hydrogen at 121.56\,nm (Lyman-)
based on four-wave sum-frequency mixing in mercury. A two-photon resonance in
the four-wave mixing scheme is essential for a powerful cw Lyman-
source and is well investigated.Comment: 8 pages, 3 figures, Proceedings of LEAP 201