Catherine Kealhofer

Photo of Catherine Kealhofer

Catherine Kealhofer is an Assistant Professor of Physics at Williams College, in Williamstown, Massachusetts.  Her research interests include developing ultrafast electron sources and methods to control and characterize electron pulses with light.


An Ultrafast Switch for Electron Emission

By firing laser pulses of two different colors at a nanosized metal tip, researchers create an interference effect that turns electron emission on and off with femtosecond timing. Read More »