Trapping and Sympathetic Cooling of Boron Ions
  We demonstrate the trapping and sympathetic cooling of B$^{+}$ ions in a Coulomb crystal of laser-cooled Ca$^{+}$, We non-destructively confirm the presence of the both B$^+$ isotopes by resonant excitation of the secular motion. The B$^{+}$ ions are loaded by ablation of boron and the secular excitation spectrum also reveals features consistent with ions of the form B$_{n}^{+}$. 
Rene Rugango, Mudit Sinhal, Gang Shu, and Kenneth R. Brown
physics.atom-ph