Once the physical theories were developed, Soljačić and his team (Andre Kurs, Ph.D., Aristeidis Karalis, ScD, Robert Moffatt, John D. Joannopoulos, Ph.D., Peter Fisher, Ph.D.) set out to validate them experimentally. The theory was developed to cover a broad range of coupled resonator systems, but the experimental work focused on proving that magnetically coupled resonators could exchange energy in the manner predicted by the theory and required for the wireless charging of devices, such as mobile phones.