“…This enables spectroscopy of previously intractable ion species, such as group 13 (see Sec. V.D), highly charged (Berengut, Dzuba, and Flambaum, 2010;Berengut et al, 2011Berengut et al, , 2012Derevianko, Dzuba, and Flambaum, 2012;Flambaum, 2012a, 2012b), and molecular ions Vogelius, Madsen, and Drewsen, 2006;Koelemeij, Roth, and Schiller, 2007;Ding and Matsukevich, 2012;Leibfried, 2012).…”