An assemblage of < 50 Ba+ ions, contained in a parabolic well, has been visually observed and cooled by means of near-resonant laser irradiation.
DOI:https://doi.org/10.1103/PhysRevLett.41.233
©1978 American Physical Society
W. Neuhauser, M. Hohenstatt, and P. Toschek
H. Dehmelt
Vol. 41, Iss. 4 — 24 July 1978
Sign up to receive regular email alerts from Physical Review Letters