Coherent Excitation of the 6S1/2 to 5D3/2 Electric Quadrupole Transition in 138Ba+

The electric dipole-forbidden, quadrupole 6S1/2 5D3/2 transition in Ba+ near 2051 nm, with a natural linewidth of 13 mHz, is attractive for potential observation of parity non-conservation, and also as a clock transition for a barium ion optical frequency standard. This transition also offers a direct means of populating the metastable 5D3/2 state to measure the nuclear magnetic octupole moment in the odd barium isotopes. Light from a diode-pumped, solid state Tm,Ho:YLF laser operating at 2051 nm is used to coherently drive this transition between resolved Zeeman levels in a single trapped 138Ba+ ion. The frequency of the laser is stabilized to a high finesse Fabry Perot cavity at 1025 nm after being frequency doubled. Rabi oscillations on this transition indicate a laser-ion coherence time of 3 ms, most likely limited by ambient magnetic field fluctuations.Comment: 5 pages, 5 figure

Soup du Jour and So Much More: A Model for School Leader Preparation

Where to go in principal preparation programs is the question that has surfaced and resurfaced for over 20 years. This question paired with the current political climate that demands strong educational accountability has created a powerful impetus to change, modify, or redesign principal preparation programs

Navigating Research Waters: The Research Mentor Program at the University of New Hampshire at Manchester

This essay uses a journal format to describe the research mentor program at the University of New Hampshire at Manchester (UNHM). Librarians, Learning Center staff, and writing instructors at UNHM have collaborated to train class-linked tutors to present basic library instruction in the classroom and to provide one-on-one research assistance to students in freshman-level composition classes. This information literacy initiative has expanded our students\u27 community of learning by providing them with point-of-need research assistance from knowledgeable peers