|
Office |
134/Laser Laboratory Dana |
|
Phone |
(704) 894-2394 |
|
|
kekrebs@davidson.edu |
| Biographical Information |
Ph.D. Physics, The University of Georgia (2000) Advisor: Uwe Happek M.Ed. Science Education, The University of Georgia (1998) B.S. Physics (Honors) The Georgia Institute of Technology (1993) |
My group's research focuses on experimental studies of dynamical processes in condensed matter insulating materials. Current work addresses the identification of electronic levels of impurity ions in ceramic oxide hosts as well as the radiative and non-radiative relaxation of those ions after optical excitation. Static and dynamic studies of these energy levels enable better understanding of impurity ion systems leading to novel technologies. We are currently examining the optical properties of lanthanide impurity ions in silica and alumina based sol-gel materials.
My current aim in my teaching efforts is to evaluate a broad scope of classroom styles to enhance my ability to communicate physical principles with students. Recent advances have been in the areas of using Physlets to relate class concepts to real world observations, and augmenting written exams by student-portfolio assessment. This spring I will incorporate Physlet exercises and other web-based materials into a modified just-in-time teaching model aimed at addressing student's preconceptions.