Dr. Ogilvie studies the dynamics of biological systems over a diverse range of time and length-scales using the combined tools of nonlinear spectroscopy and microscopy. At the molecular scale, her group uses ultrafast nonlinear spectroscopy to explore the relationship between structure and biological function. These methods access an “ultrafast” time window that encompasses the fastest processes in biology, such as energy transfer in photosynthesis. Her group also develops single molecule spectroscopies to uncover dynamics hidden in ensemble measurements and to study protein-protein interactions. On yet a larger length-scale, the group is developing novel microscopies that exploit molecular contrast to observe cellular processes without the need for artificial labels.