She moved to Cornell University for her graduate studies, where she worked with Michal Lipson.
[2] After earning her doctorate, Foster worked as a postdoctoral fellow at Johns Hopkins University.
[1] For the encryption of data, Foster developed a nonlinear photonic crystalline disk with input and output waveguides.
This device configuration allows for the reproducible scrambling of signals, which creates specific keys for various information inputs.
[4] Such devices are almost impossible to clone, and reliably generate a large number of keys for the secure transmission of data.