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Charles Fehrenbach

Charles Fehrenbach

Research Assistant Professor
Ph.D. Physics, 1993, University of Michigan

Contact Information:

Research Interests:

Ion sources, laser-atom interactions, ion-Rydberg atom collisions, slow ion-atom collisions.

Please visit the Physics Department for teaching and class information.


Atomic Collisions: We are investigating electron-capture dynamics in collisions of highly-charged ions with neutral atoms. In collaboration with Colorado State University, we have focused our efforts on the use of laser-excited targets and state-of-the-art detection techniques to make novel measurements of energy and angular-momentum distributions of the product states following electron transfer collisions. We are currently developing a Magneto-Optical Trap for Rb to be used in conjunction with a Recoil Ion Momentum Spectroscopy detection scheme to extend the precision of measurements of collision processes.

Atomic Spectroscopy: In an ongoing collaboration with Steven R. Lundeen of CSU, we use laser and microwave spectroscopy to measure the fine structure intervals of multi-electron ionic atoms. The structure constants that are determined are used to check the accuracy of multi-electron calculations. The experiments are done on the ECR ion source facility in the Macdonald lab.


Recent Publications:

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Last updated on Monday, 09-Sep-2013