Observation of isotope ion Coulomb crystals and generation of Rydberg ions in an ion trap

为了激发中性原子光离和离子激发高激发态，构建了5个外腔二极管激光系统。这些激光系统使人们能够进行同位素选择性激发和原子的光电离。用CCD相机从z轴方向观察捕获离子的荧光。用激光激发证实了捕获离子的高激发态。成功地观察了库仑晶体中单个离子的动力学。

Five External Cavity Diode Laser systems were constructed in order to excite neutral atoms to photoionize and ions to excite highly excited states。 These laser systems enabled ones to make isotopically selective excitations and photoionization of atoms。 Fluorescence from trapped ions was observed with a CCD camera from z-axis direction。 A highly excited state of the trapped ions was confirmed with the laser excitation。 Dynamics of individual ions in Coulomb crystal were successfully observed。