Laser cooling of beryllium ions using a frequency-doubled 626 nm diode laser

F.M.J. Cozijn, J. Biesheuvel, A.S. Flores, W.M.G. Ubachs, G. Blume, A. Wicht, K. Paschke, G. Erbert, J.C.J. Koelemeij

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

We demonstrate laser cooling of trapped beryllium ions at 313 nm using a frequency-doubled extended cavity diode laser operated at 626 nm, obtained by cooling a ridge waveguide diode laser chip to -31°C. Up to 32 mW of narrowband 626 nm laser radiation is obtained. After passage through an optical isolator and beam shaping optics, 14 mW of 626 nm power remains of which 70% is coupled into an external enhancement cavity containing a nonlinear crystal for second-harmonic generation. We produce up to 35 μW of 313 nm radiation, which is subsequently used to laser cool and detect 6 × 10
Original languageEnglish
Pages (from-to)2370-2372
JournalOptics Letters
Volume38
Issue number13
DOIs
Publication statusPublished - 2013

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