Hamburg 2009 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 15: Poster I
A 15.26: Poster
Dienstag, 3. März 2009, 16:30–19:00, VMP 9 Poster
A trapped-ion phonon laser — •S Knünz1, V Batteiger1, M Herrmann1, T Udem1, T W Hänsch1, and K Vahala2 — 1MPQ, Hans Kopfermann-Strasse, 85748 Garching — 2California Institute of Technology, Pasadena, CA 91125
A single trapped Mg+ ion is laser-cooled within a Paul trap by a red-detuned laser. Illuminated with a blue-detuned pump laser the ion exhibits oscillatory motion with a well defined threshold. We show that this is not the result of heating but of stimulated emission of center-of-mass phonons, constituting the mechanical analog of a laser.