A reliable cw Lyman-$\hat{I}\pm$ laser source for future cooling of antihydrogen

Abstract

We demonstrate a reliable continuous-wave (cw) laser source at the 1\,$S$--2\,$P$ transition in (anti)hydrogen at 121.56\,nm (Lyman-$\hat{I}\pm$) 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-$\hat{I}\pm$ source and is well investigated.

8 pages, 3 figures, Proceedings of LEAP 2011